For water spots, 50/50 vinegar and water, then Lucas slick mist. I always wait till I get home to do it and the water has already dried and the slick mist won’t get it off, that’s why the vinegar.
Bass Boat Saver right at the ramp. Simply wet a microfiber cloth with water coming off the lower unit, wring out and spray with BassBoat Saver, then wipe down. Takes about 5 minutes. There are many comparable products but I by BBS by the gallon.
Vinegar and water at the ramp. Wax it a couple times a year in case the vinegar strips the wax.
Vinegar is super corrosive, it will rust any of your metal hardware thats not stainless steel. 50/50 vinegar water is fine for getting off water spot but not to spray down every time you get off the water.