For folks who like command lines or those who've found the typical command line experience a little spartan, you should try tf.exe.
One interesting feature of our command line is that it uses dialogs for a number of commands when you are running it interactively (i.e., you don't specify /noprompt or /i). For instance, you get the same check-in dialog from the checkin command in tf.exe as you get from VS.
The following commands bring up the same dialogs you'd find in VS.
That makes working with the command line a lot more convenient than you might otherwise think. You can find the command line docs on MSDN at http://msdn2.microsoft.com/en-us/library/cc31bk2e(en-us,vs.80).aspx.