2 hours to clearn up the inbox

I store all the emails in the box and only delete some when I get the warning about storage. Last time I did clearning is last semester. Today I spent 2 hours to move every email to the proper local folders. It is a good chance to see what I have done since the end of last semester. Although the outcome of research isn't that breakthrough, I am still satisfied with how I deal with those multi-tasks. Now I have fewer things to do. I can put more emphasis on each thing I am doing.