ok, I'm not sure how to really explain this, but I'm going to go ahead and try

I've been making bags for a while. However, I always have the same problem. When I make the handles I make a long tube (one long piece of material, folded so the wrong side is up, and then sewn along one edge) and then have to "pull through" the material so it's on the right side. This is really time consuming and hard to do. Do you guys have any suggestions, tips or tricks that could speed this process along?
Thank you so much and I hope you can understand the problem!
Millie.