I owe you an extra pattern this week since I was bad and didn't have a pattern posted last week when I was visiting friends in California. Anyway, here is a pattern for mittens for men that was just posted on another blog. They're a small enough project that won't be a hassle to make during these warm hot summer days.
Another pattern that I am linking to for you is the Circles in Square afghan pattern. The squares are a good take along project and as crocheters know, small projects are much better to work on in the summer.