Not sure why I would really want to go back, but incase I do, I won't go all out without a care in the world. I have, like, 25,000 gil and have never bought anything. I haven't taken apart any weapons and I haven't really paid attention to upgrading.

If the last boss...es (I almost forgot this is a JRPG) are as easy as the last bird-machine creature I fought, I might not even bother. I just stopped upgrading abilities. I don't have Thundaga or any of that stuff, but I did get Haste.

To reiterate: Can you save after you beat the game? I'm guessing no, but I want to make sure.