Quick and Easy Questions (please read the OP)

[Harry Dresden]

I can't answer 3 because I've been gone for a while, but 2 shouldn't have changed in my time away. OM costs are handwaved for minor things, so long as you're not doing anything stupid and/or game-y with it. Summoning food to feed yourself, and a couple other people, is well within your handwaviness limit, as is a little one-room shelter. Clothes are definitely fine as long as you're not making more than a couple changes of outfit, but disguises are a power. OM is typically only actually "expended" to purchase items or powerups, or if you end up paying it to someone else for something like a bounty.