Why the upgrade? Several reasons. First the garage is fed by a 30A breaker inside the house strung to the garage over 2 insulators at the peak of the garage and house. The insulation is deteriorating on the wiring so I will get someone to do it right. Plus, if I move the location on the garage, I can put up a basketball hoop.
As far as the garage goes, It has 2 outlets on the back wall and one on the side that is switched with the lights. There are three light bulb fixtures, so more lighting is also in order.
I feel comfortable doing the small wiring tasks, as long as I can figure out what the inspector will accept. Feeding and installing a new panel in the garage I will find someone else to do.