When attending a bingo function that is outdoors you might want to bring a clipboard or a couple of paperweights because it can get breezy at times. You wouldn't want to have your bingo cards start flying away, would you? Rocks work great also.
Don't play more cards than you can handle. We want you to have fun! Don't stress yourself out by watching too many cards at one time.
Daub your cards nicely so that they won't leak and make a mess.
Bring a blanket, mat or towel just in case there aren't any tables and chairs available. You can always pretend you're at a family picnic. Make yourself comfortable on the green grass. Grab your beach chair out of your trunk if you have one.