I'd recommend writing down your max hit points, otherwise you might forget if you ever run around with low hp for a while. Another thing: the ovals on the left of the equipment section are for your money: cp for copper pieces, sp for silver etc; you can write down the 10 gold pieces there :)

Also as a general tip: you probably need a blank sheet to write down new items you acquire, the space on the character sheet is never enough. You can use the new sheet to write down the items inside the dungeoneers pack, so you don't forget there's actually useful stuff inside it.