I would travel to ancient Egypt and bring all of my technologies from today, and make them think I was some sort of God. Then, I would have them build statues and such in my honor, and before I left at the end of the week, I would tell them that a "prophet" (me) would return in the year 2013 to lead their empire once more.... That, or they would just think I'm some sort of witch and execute me. Either way, it would be a fun experience. :)
Well to be honest I wouldn't change a thing if I went back in time to re start my life somethings probably would have changed and there could be a good chance that I might not have been able to meet some of these amazing people in my life. I like where I am and blessed to be able to get to know such wonderful people out there !