Got the dollies from Harbor Fright. There are a couple spring steel levers which set them to raise or lower that broke right off on two of them. They replaced them no charge. Since then they have been doing great. MUCH easier to use than the non jacking type. Easy to set the car down and raise back up when you are checking ride height etc or moving from vehicle to vehicle.
If you're not going to drive the car for while, put it up on dollys. The fact that the tire is supported on the sides prevents flatspots on the bottom. Something like these hydraulic Eastwood ones are very simple to slide under the car and pump them a couple of time to lift the tire.
I actually used a set of wheel dollies from Harbor Freight. The bottom of the cribbing (picture below) is sized to set down in them securely. This way I can use the dollies with or without the cribbing. Gives me room to work underneath. I can also easily add some additional 2x4 if I decide I need more height.