Say you came across a time machine, and you could go to any period in time. BUT - once you go to that period of time, you cannot come back to the present, nor can you travel to another time again. Future or past, doesn't matter. GO!
I would travel back to February 20, 2011 and report your IP as a hacker and get you perm banned from sythe. Jk Honestly I would travel back to the day I graduated basic training and spend a lot more time saying goodbye to my friends that just died overseas. Or back to my days in college and work a lot harder Or travel back to the day before I found out about Runescape and destroy my computer Or travel back to the day I forgot to pull out.../facepalm