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I'd "pass" on the dealer's snake oil stuff as well.
For me, I ask my wife or kids to help wax my TT. We use NuFinish (orange bottle) or McGuires Wax Cleaner and do the manual "wax on - wax off" task as well. Best part of all, we take our time and chat away. Last year my son helped me manually wax our entire trailer during 1 nice weather afternoon. During our togetherness time, he chatted about his girl friend, his college, his part time work and his future dreams. I got to know my kid better, trailer got a good polish and we both got some physical exercise. Win-win-win on multiple fronts. Glad I do my trailers and autos manually as well...
Perhaps this might work for your kids and grad kids as well...