LogFAQs > #973644045

Since you mentioned equipment, I'll mention that you're at the point in the game where some items in shops that are available now that won't be available later on. This was true for some stuff in disc 1/2 as well, which is unavailable now, due to some shops either changing their items or becoming inaccessible. However, I think the disc 3 items are the ones people miss the most. If you haven't already, get the Octogon Rod for Vivi from Esto Garza (I forget if you have access to this yet but if you don't, you will real soon). Also consider anything else that teaches an ability that looks interesting.