As many of us know, it sure is easier to keep a car clean than it is to get it clean. I can wash and wax my cars in 2 hours but that is only because I sepnt 10-15 hours at one point to prep it. So you only have a little time? do it in stages. Do the roof and sides pillars one week, maybe the hood and trunk the next, the sides go quicker unless you are tarheeled up (just a little joke there). I do several steps. Wash, clay, cleaner, wax. After it is done I can just wash and add a quick coat of wax. I usually wax once every 6 months because if youl et it go too long, you are back to square one. Maybe wait a month though, that Carolina sun is pretty hot this time of year. We were in the outer banks a couple weeks ago.