I travel solo most of the time with my little T@B. I, too, use the telescoping magnetic tennis ball set for hooking up. I also like to place a rock, pine cone, stick, or other object on the pad where I want my driver's side wheel to "land". It keeps me from getting out to see if I've landed where I really want to be.
I like the GPS for the fact that it shows me what side of the road I need to be on for exits and "Y"s that I will be approaching. It gives me ample time to get in the correct lane.
I don't plan out too much of my route because I like to be spontaneous. If I see something that looks interesting, then I investigate it. I took an 11-day trip this spring, though, and got in a difficult situation at a fuel stop where the tanker pulled in and blocked my exit. He was going to be there 45 minutes. Ugh. Backing out was difficult without a spotter because of the******they sell and have lined up at the end of pump islands (bottled water, firewood, etc), as well as people zipping by pulling into the grocery store, which shares the lot. I made it, but it wasn't pretty.