Hi Tim, if the front door is wood then taking a wood plane to the sides will fix what you're describing, and a plane can be obtained at the local hardware store for a few bucks. However, before you do anything first make sure that it's wood, second make sure that the door jam is not out of alignment, then third look to see where it's binding. The areas where it's binding are the ONLY areas that you want to plane. The best method to determine how much to plane off is with the door open pull it toward the jam (don't close it) and measure the areas that come in contact with the jam. Sometimes you can use a pencil (if room permits) to trace the offending areas. Good luck, and I hope this helps!