In a recent case of mine, I was arriving in DEN at 730am (for a potential 8am pickup) with a resulting particularly high weekly rate. By playing with the res system and changing the pickup from 8am to noon (same dropoff 5 days later), the weekly total rate dropped by something like $100. And it was *not* due to a difference in effective rental days or going from daily to weekly rental etc.

It may have simply been a supply/demand thing in the system, maybe there were more available cars in the pipeline later in the day once more returns were processed or something.

I can work in the RCC for a few hours if needed to save that $. It wasn't going to be a busy day but that particular early flight arrival was the cheapest available for the total package.