4 other uses for beer.
I knew about the stain and hair uses, but this one I'll have to try:
4. Ward off bugs
Citronella candles not doing getting the job done? If your guests are getting eaten alive, pour stale beer into buckets and place them in the corners of your backyard. It turns out, small flies and mosquitos are a fan of a cold lager, too. Meaning they will be busy imbibing, and not nibbling on you.