Does anyone have a little more insight on how to properly synch your garage with the opener that's attached to the car? I've gone over the steps within the manual over and over, and never have seemed to get it to work. Any tips are welcome!

This was after a car accident, but it seems to be getting less milage now. I know, because I always pay attention to the miles my car has left, and see how many miles I've driven since that last time I've filled up. I also haven't changed my driving style up, it's been the same commute as always. Any tips on where to get started first? I want to avoid taking it to a dealership, since I'm short on cash right now.

I have some pain scruff marks on both rear sides of my bumper. I would like to see if I can buff out as much as possible. I just don't know what products/what to do. Nothing comes out when I wash my car by hand with just car soap. Any help would be much appreciated.