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One option would be to build and mount your panels on a cart. This would place the panel at an angle but allow you to change which direction the panel faces in order to increase the amount of sun it gets in a day. This will, however, require you to adjust the panel 2-3 times a day. This is a popular way to mount the panels because they tend to receive the most sunlight and are out of the way. However, the angle will need to be consistent with the sun's path and your peak load time. This will limit you to only getting full exposure at certain times of day. This option is best if you have a large number of panels and very little ground space to place them on. The stands usually used to mount satellite dishes can also be used to mount solar panels. They can even be programmed to move with the sun. However, this option will only work if you have a very small number of solar panels.
Mount your panels on a cart. Mount your panels on your roof. Mount your panels on a satellite stand.