Assuming I didn’t do the probably sensible thing, which is to DO ABSOLUTELY NOTHING DO NOT MESS WITH THE SPACE TIME CONTINUUM, I would go back to 1993ish and do two things:
(1) give my younger self some good financial advice about when to sell stock in the company I worked for
(2) get a message to Bill Clinton to KEEP IT ZIPPED ALREADY!
You probably couldn’t get to him, or you might be too late. There’d be thousands and thousands of other time-travelers trying to do the same thing.
That would be a pretty funny scenario – thousands and thousands of gun toting time travelers jamming up the streets of Austria, all asking how to find the Hitler family, getting into fights with each other over who gets to shoot him.
That could even be a way of eliminating time paradoxes – people going back to change history end up killing each other instead.
I would also like to go back to the time of the writing of the Second Amendment and tell them to write EXACTLY what they mean. 
11 May 2001: Attempt to lure Douglas Adams away from the gym with doughnuts.
I think someone did that, it doesn’t seem ambiguous. 
Dang you, Monkey. That’s what*** I*** was coming in to say!!! I couldn’t decide which was worse: the lead’s wooden face/acting or Ben Kingsley’s hair.
Gads, but it was every bit as bad as **Monkey **says, dopers.
That said, I’d be wary of messing with too much more history. Don’t want the reapers or the Shadow Proclamation hunting me down. That could get ugly! :eek: