It does all need to be used at once, and I don’t think they give any change, so be prepared to get your munch seriously on. That’s never a problem for me there though.
Hopefully I haven’t done something silly like take a picture of some code part that allows someone to redeem this beforehand, but I made as sure as I could not to have any identifying numbers from the gift certificate showing. I don’t think Voodoo Doughnuts works like that with their gift certificates anyway, but no worries regardless. I’ll make it good if I somehow Internet screwed this up.
(Once Bitten at the Fbomb. Features: Danger Slater, Eirik Gumeny, and Karl Fischer, and there will be open mic, Tuesday October 18 at 7 PM Mercury Cafe Denver. Go here to go sign up on the Facebook page for the event.)