I bought a 3 lobe beanbag from Big-Lots, and stuck the TomTom suction cup to that. I can place it anywhere on the dash, though the best spot seems to be as close to the right side of the steering wheel as is stable. That is close enough to access the GPS, and just below my line of sight out the windshield.
When parking, I can take the whole off the dash and place it on the floor, relatively out of sight.
When parking, I can take the whole off the dash and place it on the floor, relatively out of sight.