Listening to music and certain smells can already take me back in time :) I can really get back in the moment, it's p cool.
I dunno though. The future is what I would probably visit though. Although I loved my past I don't want to potentially mix it up and instead I would go like a couple years into the future to see what things COULD be like. I realise that my actions could change things but it's always good to have a goal to aim towards and see what the future could hold if you followed a certain set of actions. I mean nobody knows what those are, but that's the course you're on right now and it's up to you to change it. With the past anyways though, I've done so many stupid things I think the embarrassment would overcome the excitement of returning back lol
I dreamed about the future a few weeks ago... I went into a portal and it took me into the future. I was so apprehensive about seeing the future but I did and it was still really cool. I mean I dunno, I'd go to any point I could really... it's like magic. And if magic were real, I'd be all there. Although an alternate future where I could use magic, speak to birds or transform into a bird at will would be cool too.
...things are so cool that I used cool three, now four times. :)