As needed during the winter. Try to use touchless bays, but will do the traditional. One place near my office has $.20 off a gallon and I parlay it with my standard card $.10 off. 15 gallons at $.20 off is $3, so the wash truly only costs me $4.
In summer, all vehicles are washed by hand - by me - regularly.
In summer, all vehicles are washed by hand - by me - regularly.