Originally Posted by
t4mv
I'm with Denver and everyone else on the wiggle technique; start at the valve and get both beads into the bottom of the channel and grab the tire carcass with both hands and work away from the valve, creating as much slack as you can when you finally get to the side opposite the valve.
I think that it's actually a little easier if you start opposite the valve and work toward it. The inner tube is a bit thicker at the valve stem and keeps the tire from settling in quite so deeply.