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Almost every 100 envelope challenge binder on Amazon has the same flaw, and almost no one mentions it before you buy: the pockets are too small to hold the money you’re supposed to put in them. I read through the critical reviews on the five most popular binders, and the same complaint came up on four of them — bills slide out, pockets pop open, one buyer resorted to taping each pocket shut.
That doesn’t mean don’t buy one. It means buy the right one, and know what you’re getting.
In a hurry?
The Pemocyny 100 Envelopes Challenge Binder is the best choice for most people, because it’s the only one in this group with a zipper that closes around the whole binder. Every other binder here relies on the pockets alone to hold your cash, and the reviews say the pockets aren’t up to it.
How the 100 envelope challenge actually works
A surprising number of buyers get the binder home and can’t work out what they’re supposed to do with it. One reviewer said plainly that she wished it came with instructions.
Here it is: the binder holds 100 numbered pockets. Each day you pick a pocket at random, and you put that many dollars into it. Pull number 7, you save $7. Pull number 84, you save $84. After 100 days every pocket is full and you’ve saved $5,050, because 1 + 2 + 3 all the way to 100 adds up to exactly that.
You don’t have to do it daily. Weekly works. Twice a month works. The number on the pocket is the only rule.
One thing worth knowing before you shop: when a listing says “100 envelopes,” it usually means 25 sheets with four pockets each, not 100 separate envelopes. That’s standard across the category and not a scam, but it does surprise people.
The five binders at a glance
| Binder | Closure | Stands out for | Best for |
|---|---|---|---|
| Pemocyny with Laminated Tracker | Zipper | Only one that zips shut | Most people |
| SKYDUE A5 Challenge Binder | None | Most reviewed by far | Trying it cheaply |
| 2PCS Challenge Binder Set | None | Two binders in one box | Couples, two goals |
| Luweoxy Challenge Binder | None | Compact, good for small bills | Saving tips and change |
| Silkscreen Numbers Binder | None | Printed numbers won’t peel | Skip it — see below |
Pemocyny 100 Envelopes Challenge Binder — the one to get
This is the only binder in the group with a zipper closure, and after reading four other products’ reviews, that turns out to matter more than anything else on the spec sheet. When the pockets loosen up — and they will — the zipper is what keeps your cash inside the binder instead of loose in a drawer.
It also has the best ratings of the five and, unusually, almost no critical reviews at all. You get an A5 binder, 25 three-hole pocket sheets numbered 1 to 100, a laminated reusable tracker, and a spare non-laminated tracker sheet.
The honest drawback: the PU leather is thinner than the photos suggest. One buyer called it flimsy and wondered how it would hold up long-term. At this price that’s the trade-off you’re making, and the zipper still does its job.
One note if you plan to buy refill pages later — these are 3-hole sheets, so they won’t fit a 6-hole binder from another brand.
Best for: anyone who actually wants to finish the challenge with the money still in the binder.
SKYDUE A5 Challenge Binder — the safe budget option
With nearly 4,000 ratings, this is the most-reviewed binder in the category, and there’s something reassuring about a product that many people have already tested. You get a PU leather A5 binder, 25 six-hole pocket sheets numbered 1 to 100, and a laminated reusable tracker. No pen.
The honest drawback: no closure of any kind, and the pockets are the problem. Buyers describe bills being hard to slide in, slipping back out, and pockets tearing once the higher-numbered envelopes start holding real money. One reviewer wanted bigger pockets and doubted hers would survive more than a few uses.
A second thing worth flagging: several people felt the listing photos implied more in the box than actually arrives. The written description is accurate — read that rather than the images.
Best for: trying the challenge cheaply before committing to something sturdier.
2PCS Challenge Binder Set — best for couples
Two complete binders in one box, which is a genuinely different proposition from everything else here. If you and a partner are both saving, or you want to run two goals at once — a holiday fund and an emergency fund, say — this is the cheapest way to get two.
The honest drawback: this one has the clearest version of the pocket problem. Multiple buyers independently report money sliding out, and one described taping every pocket shut after filling it. The sleeves also need cutting open before first use, which nobody expects, and several people wished the plastic were thicker.
Best for: two people saving side by side, if you don’t mind treating the binder as a shelf item rather than something you carry.
Luweoxy Challenge Binder — best for small bills
The most compact of the group. Reviewers describe it fitting neatly in a desk drawer or bedside table, and more than one mentioned using it to stash tips — which makes sense, because the pockets handle small bills better than large stacks.
Interestingly, one reviewer specifically described the pocket material as thick and durable, which contradicts the complaints on the other binders. Quality may vary between colors or production runs.
The honest drawback: the same slipping problem once pockets fill up, and two things that catch people out — the 1-to-100 tracker chart isn’t dry-erase, and the pages arrive loose rather than already in the rings. The pockets also want flat, uncreased bills; crumpled ones look messy through the plastic.
Best for: saving small amounts often, especially cash tips.
Silkscreen Numbers Binder — the one I’d skip
Its selling point is real: the numbers are silkscreen-printed rather than stuck on, and not a single reviewer complained about them peeling. That’s a genuine advantage over sticker-based binders.
But the pockets are the narrowest of the five. One buyer had to fold bills into quarters to make them fit. Another said a single bill sits fine but two is already too tight — which is a problem when you’re supposed to be putting up to a hundred dollars in one pocket. The numbers are also printed in white, which is hard to read against an empty pocket, and the tracker needs a dry-erase marker that isn’t included.
One reviewer summed it up better than I can: spend slightly more and get something better.
Best for: honestly, nothing here that the others don’t do better.
What to expect from any of them
After reading several hundred reviews, the pattern is clear. These binders are made to a price, and at that price the pockets are thin PVC sleeves. They will loosen with use. They are storage, not a wallet — fill them and leave them somewhere safe rather than carrying them in a bag.
Knowing that going in is the difference between a binder that disappoints you and one that does exactly what you asked of it.
The binder is only half the system
A savings challenge binder tells you how much to set aside. It doesn’t tell you where the rest of your money goes — and that’s the part that decides whether the challenge survives past week three.
That’s what the printables do. My Cash Envelope Binder Kit includes 18 category labels, a cash envelope tracker, a sinking funds tracker, and a monthly budget overview — in both A6 and A5, so it fits whichever binder you end up with. Print it at home and your challenge binder becomes part of an actual budget instead of a jar with numbers on it.
Related reading
- Best Budget Binders on Amazon: An Honest Comparison — if you want a binder for everyday budgeting rather than a savings challenge
- Cash Stuffing Categories: What to Actually Put in Your Envelopes — the categories that make an envelope system work
- What You Actually Need to Print Planner Printables at Home — paper, trimmers, and the 6-hole punch that matches these binders