Importance of archiving:

I have realised that i should maintain an archive of every work i do. I should preserve the books and all the files I have for any perticular project. Because i always configure a very good work environment, and i cover a lot rather than spending a lot of time on small parts. And mainly because i have a short term memory and i keep on changing projects and interests.
So its all the more imp to me. Good eg. TAC programme, Bad eg. IITB summer training, GRE