I've seen that quite a few many times but I'm lost after the 6th dimension.

I would go back in time by ten minutes to when I just stepped into the shower so I could easily wash all the hard-to-reach spots.

"While waiting for the site to return, I'd have my wife go back so I could attempt a threesome with two of her."

And you seemed so prude! :(

Go back in time to buy a portable CD-Player!

I was going to post the same thing but thought that too few people would get it. :D

I read the one topic about the CD-Player a few minutes ago and realized that this would be a very lame excuse for using a time machine! :-)

I'd go back in time to mess with inventors' heads by walking by while using the invention they just invented but didn't patent yet.

That's not lame, that's awesome!!!

That time that guy parked his car in front of my building and left his proximity alarm activated, so every time someone drove past it all night long it went off? I'd like to go back and be there when he parked it.

LOL! How about photo-bombing famous photos throughout history?

I'd go to Pompeii at the beginning of August 79 AD and engrave "The cake is a lie" on a street.

I'd go back in time and get an old timey photograph of myself taken. Then I would travel back to the
present and post it on the internet so that when people find it on the net they'll think I'm a vampire.

25 years ago I'd use it to try various pickup lines on a girl until I finally found the one that worked.

"Did it hurt when you fell from heaven?"
<rolls eyes>
ker-zap-crackle-flash
"Are you from Tennessee?..."

Imagine doing so in the very early days of photography, when you'd have to hold your photo-bombing pose for 30 seconds.

Change "Tux the Penguin" to "Ferris the Ferret", just to see how different it twould be

I'd go back to 9:00am and see where I left my keys.

Oh and I'd also kill Hitler to prevent WWII, but only to see if Red Alert would happen.