Hard save often

Persona 3 Reload doesn’t have autosaves, and sometimes the game is so breezy you might forget to put a hard save down. Get into the habit of making hard saves before you head to Tartarus, and after you’ve moved up however many floors you decide to go up that night. It’s even worth heading down when you find a two-way teleporter to drop a save in the lobby. This is especially important if you reach a “gatekeeper” shadow, which is a powerful enemy that is your sole foe on a specific floor. These are usually accompanied by a teleporter to a safe zone, but even that’s not guaranteed. So if you have an opportunity to save, take it—every time.