The Church Ladies are Quite Keen on Knitting. This Church Lady in particular inherited a ridiculous amount of yarn at a recent yarn swap, and has been trying to match the yarns to the Perfect Project.
Swatching is not my favorite aspect of knitting, despite its necessity. To avoid repeating work, I have started attaching string tags to my swatches, with the name of the yarn(s), the needle size & gauge, and what project the swatch represents.
No tags? Sacrifice a manila folder to the cause, punch a hole in the corner, and tie it on with the cast-on tail.