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The 100 Envelope Challenge

Save $5,050 one envelope at a time.

Pick a number, put that many dollars in its envelope, cross it off. Do all 100 and you've saved $5,050, and you watched every dollar of it land.

Over 30,000 people already save with When Pigs Fly

Woman holding the pink 100 Envelopes Challenge binder

Try it here

Tap an envelope to stuff it.

This is the challenge sheet that comes in the binder. Each number is the dollars that go in that envelope, in any order, at your pace.

$0 of $5,050

0 of 100 envelopes

How it works

Three steps. No apps, no spreadsheets.

Laminated savings challenges with numbered grids 1

Pick a challenge

Eight laminated challenges with different goals, from a quick $1,000 to the full 100 envelopes. Three of them are color-in pages.

Open binder with dollar bills inside clear envelopes 2

Stuff the envelope

Each number has its own clear, numbered envelope. You see the cash go in, and you see it stay there.

Hand crossing off a number on a savings challenge 3

Cross it off

Mark it with the dry-erase marker. When the sheet is full, wipe it clean and start the next goal.

Everything in the box: the binder, envelopes, zip pockets, marker and challenges

The binder

100 Envelopes Money Saving Binder A5+

$19.99$29.99
  • 100Clear numbered envelopes, one per number of the challenge
  • 8Laminated savings challenges with different goals, reusable
  • 5Large zip envelopes to run a second goal at the same time
  • 1Dry-erase marker with an eraser on the cap
  • 1A5+ binder sized so it closes easily with all the envelopes full

Price on the day this page was written. The store shows the current price.

Free printables

Get 10 printable challenges for your A5+. Free.

Join the list and we'll email you 10 color-in savings challenges made to be hole-punched into the A5+ binder. After that, one short email now and then with a new challenge or a budgeting idea. Nothing else.

Unsubscribe anytime with one click. We never sell or share your email. See our Privacy Policy.

Printable challenge being filled in with a marker

Why envelopes work

Money you can see is money you can plan.

You see it fill up

A balance in an app is just a number. A stack of full envelopes is progress you can hold, and that's what keeps you going on week six.

Small amounts count

Some weeks you stuff $3, some weeks $80. Every envelope moves the total, so a tight month doesn't break the habit.

You decide first

The money for a goal goes in before it gets spent on something else. That's the whole trick, and it works on any income.

Questions

Before you start

How much do I save with the 100 envelopes?

Envelope 1 gets $1, envelope 2 gets $2, all the way to $100. All 100 add up to $5,050. You choose the order and the pace: some people do one a day, others one a week.

Do the envelopes fit real bills?

Yes. They are sized for US dollar bills, and the binder still closes when they are full.

Can I reuse the challenges?

Yes. They are laminated: cross numbers off with the dry-erase marker and wipe them clean when you're done.

Where do I buy it?

On our TikTok Shop and on Amazon. Shipping, returns and payment are handled by the store you choose.

How do I print the free challenges?

Print at 100% scale (not "fit to page") so the holes line up with the binder rings, then cut, punch and color in as you save.

Who is When Pigs Fly?

A small US brand of envelope budgeting binders and savings challenges, for people who'd rather see their money than guess where it went.

Your first envelope is $1.

Start with that one.