tips... someone said last swap they store their stacks in a ice cube tray.
To keep straight what I have already placed:
I put dots of 2 way glue (like post it note glue) on cardstock & put it up with magnets on my metal kitchen cupboard door. Stick the cut stamps on it. I know how many I have cut, how many left to cut, & what fabric, all at a glance. And that set is my own keeper set.
I put my big cutting mat on my kitchen cart. (small house 925 sq feet)