Why do I keep getting Recovered files in my trash after restarting?
Any file that isn't closed when the program terminates (or the mac crashes or is rebooted) gets flagged as a recovered file.

Usually these are temporary files and never intended by the program to be seen by you. Here are some links from Apple on this behavior:


http://support.apple.com/kb/PH7225
http://support.apple.com/kb/PH4205


It is only a problem if you lose work or feel the program should be exiting cleanly and not crashing. Have you looked into the console app to see if the programs are crashing or it's just a matter of shutting things down before the apps have a chance to clean up and quit in an orderly fashion.