Are there any good tools for listing your current programs, maybe exporting settings etc. Listing hidden settings and save locations would be great too.

I'm about 90% ready to switch to Linux full time, and I want to make sure that I've got everything. I've got a horrible feeling that I'm missing something, but I can't think what it might be.

EDIT: Ironically, I forgot to mention my ADHD / memory issues. I could do with a tool like this because I forget about anything that I'm not currently using, or actively thinking about using soon >.<