#lifeprotip I don't always remember to do this, but I try to photocopy and file every piece of paperwork I have to submit to someone. It can be so useful to know what I sent after I've forgotten.
@acjay Good tip, even better to scan and tag them with various keywords maybe?
@davoloid That works too! Or even a phone photo would do the trick.
Related #lifeprotip: if I get a physical blank form from someone, I try to remember to photocopy it before writing on it. Lifesaver if I screw it up.