I really like parkSFO for convenience. Easy in, easy out. It's where we park for shorter stays.
Cheers.
I concur. I especially liked when a two day trip turned into a three day trip due to a VDB, but I managed to print out one of their 1 day free coupons (valid for 3 days or more - they've also got 2 days free valid for 4 days or more) and kept the cost of parking exactly the same for me.