Allow players to grind.
Players should be able to grind experience, money, or at least consumable items through repeated questing.
Reasons behind this suggestion have been expanded upon in this thread: http://forums.10x10room.com/viewtopic.php?f=4&p=2877&sid=5cb57d9fac477c8b93dc6f5fb82bdcf9#p2877
Meh. I like that this game is one time through. It's easy enough to advance. Try out the other options on the next guy IMO.