What Do You Do With Kiloware Leftovers?

i had a large bag of stamps that I threw out simply because they were too damaged or too common to keep

As a US resident, I am learning that poundage is easier to find than kiloware...

Seriously, I was also wondering what people do with stamps outside of their target areas? I have thought about using a couple of children's albums I have as a catch all, but not sure how rewarding that would be. Also one isn't as easy as it one was to enter in, Scotts junior album from 1934... It was my great aunt's and she laid stamps from the 40s_60s on top of issues that were by then less and less likely to find.

I have a massive (for me) 1+ pound envelope that I am looking forward to of US and worldwide, but am only intending to collect US, some German areas, UK, and Cayman Islands......