Pointless Superpowers Part 2!

if you commit crimes and then transport to a parallel universe identical to your own you will transport to a universe where you have commit a bunch of heinous crims and be arrested.

and for you're number1.... bug spray

you could also probably infect them with ebola then use them to assassinate world rulers

What if it weren't that you could jump between two worlds, but that you created a new one each time that's exactly like the one you're already in? (ie commit a crime, and it's been done in the new world as well)

4. Well if you shat live grenades you would probably kill yourself
5. if you SPOKE in hieroglyphs you still wouldn't be able to read them or understand them so that'd be useless ( I can say a few sentences in Japanese but if you were to actually speak Japanese at me or give me a piece of paper with Kanji written on it I would be stumped)
The travel fees alone to try and get the diamonds would be incredibly large, you would need to get your body weight in diamonds on each theft then be able to return home with them in order to actually profit and by that point you would be better off just fencing it.
8. if the parallel world was exactly the same it would stand to reason that you would have a parallel self who would also have that exact same power and do the exact same things you do soooo nothing would happen because he would do everything you do in that world in your original world and then you would switch places and be in the exact same place, Now if you could manage to some how mess up the the universes in such a way that they were no longer EXACTLY the same then you could get somewhere.
9. You would be the greatest weapon man kind has ever known, bullets would turn into
wacky waving inflatable arm flailing tube men upon touch, tanks could easily be turned into crudely painted Not-So-Funny plywood Cut-out folk art and world leaders would bow to your powers.
The house flies have a million things you can do with them
You could make swarms, you could troll you enemies, you could assasinate world leaders and make it look like an accident, you could spread diseases and wipe out nations, you could rule the world with that power.