When you check your bags in Memphis politely explain to the agent at the ticket counter that your final destination is actually Tampa Bay on a second reservation and they should be able to check the bag through for you. It's very possible to do, but sometimes the agents aren't quite sure how to do it. I've had to be a little persistent to get it done before, while other times it was easy. Give yourself a little extra time at check in to get it done just in case. --TheMiddleSeat
... View more