It may not be mud season, but that’s no reason not to take advantage of a bargain car wash. Waterworks Car Wash marks 30 years in business this summer. They’ll mark the occasion on Saturday, August 5 by throwing back prices to 1987, their first year in business. From 7 a.m. to 8 p.m. customers can get the Waterworks signature full-service wash for just $6.99 (normally $9.99). That includes interior vacuum, dusting and windows and exterior wash and hand dry. While you wait, enjoy FREE Dazbog coffee and WiFi access. To sweeten the deal, Waterworks will donate $1 of every wash to the Make-A-Wish Colorado. 276 Broadway, Denver.