Master the 5-4-3-2-1 Packing Method and You’ll Never Need More Than a Carry-On Again. ... And they all offer a handy mnemonic countdown to help remember what to throw in your bag. ...

Like many viral trends, the exact origin of the 5-4-3-2-1 method is a bit hard to pin down, but it likely started with blogger Geneva Vanderzeil. Customize the 5-4-3-2-1 Method.

The 5-4-3-2-1 packing method is such an ingenious problem solver and so space saving that it’s a little frustrating to think how long it took us to learn about it. We could have been doing just ...