I have a big sheng sample jar. All samples that are not completely bad, but are either left over from teas i decided to buy a cake or more off, or which for some reason or the other i decided against, will go in there.
It's gonna be an interesting blend in a few years.
I do the same. I have already two large airtight tins full of leftover samples and leftover leaf from breaking apart cakes. I would like to eventually compress this into some cakes.