Foursquare just launched a neat new tool that allows you to view the last year of your life in Foursquare check-ins. Don't worry! It's more than a depressingly reductive view of your life as the summation of activities on a social network. It's actually really cool.
Using the new tool you can sort your check-ins in a few different ways, including by category (above) and by time (below):
You can also view your history by connections, which shows you where you went after visiting a particular location. Check out the tool here for yourself.