It's the simple things in life that make it enjoyable. One of them being able to configure your build server to automatically include all unit tests when it builds a release.
Until recently, we were manually adding each unit test library that we wanted to run to TeamCity's configuration. Apparently, though, it does support wild cards:
Since we follow a standard naming convention for our unit (and integration) tests, it's easy to include all of them by putting a wild card filter: **\bin\Release\*UnitTest*.dll.
Found via Stack Overflow.