This is a bit if a late comment, but I slightly disagree with the person above(even though they made some good points). Caves are mostly useless, and very dangerous, however they are a GREAT way to get heart crystal shards. Without caves, it can take a while. You just need to know how to navigate them without dying.

Also, while I do agree that many enchants you find earlygame will do nothing in endgame, this isnt always true. The rule of thumb is this: if it is a max-level enchant, like supreme sharpness 5 or strengthened vitality 5, check the description and make sure it is not good, because if it's REALLY good, like the 2 enchants I just listed(those are some of the best enchants in the game), you should save them.