So Many Plots

Q: What do you do with those extraneous plot ideas that are too good to throw away but don't fit into your work(s) in progress? 
- from Susan
Good question and I really want to hear what the rest of the Minds answer.  I keep little files with titles that grow increasingly difficult to interpret over time:
Dani in LA – defaced murals?Peter / Indian art, SF?Teeni’s new job goes crazyDavid – music teacher, obsessed girlWho killed the dealer? Not a strangerDickie Swiss Alps ski m...