Some Useful Cheats
You have a limited inventory. Stockpile your excess inventory in places on the map, and be sure to mark them so you can come back later and replenish your supplies.
Your general health is ultimately more important than a big spell collection. Health potions are pretty rare, so concentrate on collecting them when you encounter a vendor. They'll come in handy when you're in big battles.
If you're about to enter a room filled with hordes of enemies, it's much better to back out of the room, and get them as they stream through the door.
Always remember that your magic recharges, so it's better in the long run to wait until you have maximum magic before starting
on unknown rooms.