Buffalo. No part goes to waste.
With any single sheet, I first make big things. (E.g., large boxes or other big items.) Then medium sized things. (Small boxes, good for gifts.) Then smaller things – coins, decorative squares. Then tiny things (buttons, etc.).
Out of my medium scraps, I recently made a bunch of coins (see: Worth more or less). Then I took the cut-out hands and wrote positive things on them (“Good job!” and “Wow!”). I’m going to be dropping them off randomly over the next week – leaving them on people’s desks, leaving with the tip at lunch, etc. Even the cut-out wrists (small rectangles) have been put to use – it just took a 1/16th drill bit to make them into beads.
The final scrap that goes in my trash is typically thinner than 3mm. (If I have 3mm or more surface area, then I can work with it!)