I budget $250/month each for my husband and I in an "Other" category, which is partially entertainment/fun stuff (video games, movies, alcohol) but also non-monthly, not-fun expenses--work clothes, car maintenance, haircuts, household items, etc. All our travel comes out of this fund as well.
Our restaurant and grocery shopping expenses are together in a separate "food" category because we eat out way too much (at Chik-Fil-A, Chipotle, Dominoes, etc) as a survival strategy, not for social purposes. We are slowly getting better at cooking and eating at home, though.