Hi I Used To Offer Weekly Washes My Customers Would Get A Contract Every Year They Would Get A Complete Detail In The Spring ( March Or So ) Then Every Week They Would Get A Hand Wash , Vac. And Tires Would Be Dressed Along With Any Touch Ups That They Needed They Would Have A Reserved Day And Time ( Ex: Every Wed. I Would Be At Mrs Smiths House At 2pm ) And They Would Get A Complete Detail In The Winter Before I Shut Down I Dont Work In Most Of Dec. Jan. Or Feb. I Would Give Them A Reduced Price On The Details And Charge Them $20 - $25 Per Week For The Washes. If It Rained On There Day They Would Have To Wait Till Thier Appy Next Week Unless They Called And I Could Fit Them In The Next Day Or 2. Most Waited Because I Would Apply A Spray Wax To Thier Car If It Rained On Thier Appointed Day And They Waited This Saved Me Having To Double Up On The Next Nice Day. I Was Doing Very Well With This I Was Up To 43 Cars A Week However I Had To Give Up Weekly Services Because I Could Not Take On Any New Cust. In The Spring Or Winter All My Time Was Taken Up With My Discounted Custs.. So I Ended Up Selling Off Most Of My Wash Custs. To Another Detailer