Did you do the Early Bird check-in? I always do the Early Bird check-in especially for my return flight. It's $10 per person each way and checks you in automatically 48 hours ahead of time (I believe it's 48 hours.. might be 36). It selects your boarding number for those familiar with SW, and since it checks you in earlier than the general public can check-in, which is 24 hours out, you usually end up with a really good boarding position without having to worry about being at a computer/printer 24 hours ahead of time. Never had a problem with it. You still need to go to the counter for your boarding pass though unless you print it yourself at some point.