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 ...