Id go back to 1900, meet my great grandfather, who was lost at sea in 1914. then take a quick peek at what it was like here during WW1, im a bit of a geek and own quite a lot of WW1 stuff.... but i wouldnt want to stay long.
i'd go back five minutes, to when i posted in an identical thread, and tell myself "wait! there will be the same exact thread five minutes from now!"
Like the rest of us, 5 minutes that you otherwise would have wasted reading some barfeooters thread or this week the classically revived "I love womem but I also love big cocksi in my mouth" thread