What would you do? Both Google and Overture offer daily budgets, which is great for staying within a monthly budget. Unfortunately, if a daily budget isn't met, the unused portion of that daily budget is not rolled over (use it or lose it). This "cheats" us out of getting full ad exposure. This also creates a manual management of PPC. Have you run across any automated options to get full exposure of ads and uses the full PPC budget amount?