Got a door in your house that wants to swing open whenever you open it just a tiny crack? The Family Handyman has a simple fix, and all you need is a few basic tools.
Usually, when this happens, it's because the door frame isn't plumb. But instead of taking everything apart, you can usually get by with this simple tweak:
Grab a hammer, a few scraps of wood, a large nail and a shim. Take them into the room and close the door. Stick the shim loosely between the door and the jamb to hold the door in position when you drive out the upper hinge pin. Then bend the pin slightly with a firm whack. Reinsert the pin and check the results. If the door still won't stay open, do the same with the lower hinge.
Hopefully, your door will behave a little better when you're done. Hit the link for the full step-by-step.
How to Stop a Door From Swinging Open [The Family Handyman]