Also, buy a ton of Hypers and keep your characters in Fury all the time. This will help you train the /2 limits once you unlock the X/ ones. I trained all the characters I had to 3/2 once I reached the forest you get Yuffie in, fighting Capparwires (So cute! :fpenerg. I also had over 50000 gil when I went to Junon and everyone was level 30+, which is another benefit of doing the training all at once. Monies and levels early on. (Not to mention AP.)

But yes, Capparwires are my enemy of choice until quite a bit later on in the game.