Over the past couple of days, I've been training my Pokemon against the post-game trainers because I skipped most of them. My Pokemon are now level 76-80. I've also started catching the legendary Pokemon available in the game. Yesterday, I went to catch Latias in the Dreamyard. It was really annoying to catch, taking me over 50 balls. Today, I went to the Underground Ruins to catch Regirock. It was much easier to catch and didn't take that many balls.
Also, I've been wasting a lot of time at the World Tournament.