I drive my VX every day that its not 70+ and sunny and only fill up every other week. I live less than 10 miles from my work, so the rise in gas prices doesnt affect me too much.

I drive the VX in the winter/cold weather and when its rainy
I drive a 2007 yamaha R6 when its mild in the morning and warm in the afternoon. And on days when I dont have to drop off or pickup my Son from daycare.
I drive a 2003 Mitsu Spyder GT when its above 50 and sunny. I even added a car seat so I could drive it on daycare days.

I have a wierd matrix on the fridge to help remember what days to take what vehicle...(kidding)

By spreading my drive time across 3 vehicles, I can go upwards of a month before I need to fill up. The downside is, I then fill up 3 at once.