What Would You Do with an Extra $50?

My parents are cleaning out their cupboards in preparation for a kitchen remodel. While cleaning out they found a white envelope that obviously had some cash inside with "For Kate" written on the outside in my mom's handwriting. I opened it up today and found a lovely $50 in cash. My mom didn't include a note, so we don't know why she was giving it to me or how long it had been in hiding, but it is mine :).

So I am curious to know, what would you do with an extra $50? I am thinking of spending mine on some new shorts for summer....