I basically just add salt to Gatorade and cut it with extra sugar and malto. It's a couple extra steps but I train regularly enough that I make a concentrate (100ml=200kcal) that I put in bottle and dilute as needed.
One of the runners I mined for training advice was using gatorade to take salt tabs. That was not the advice I took from him, though. I will probably avoid at least one injury from other things he said.