Originally Posted by
ThermionicScott
Although this doesn't directly answer your question, make sure the tube has a little air in it when installing. That helps keep it out of the way of the tire beads so it's less likely to get pinched.
Adding air helps stuff the tube deeper into the tire, and usually helps keep it there, but once you've mounted the tire 3/4 of the way around let the air back out. Air in the tube pushes the tire out against the sides of the rim keeping it away from the deepest part.