This was something my DH did last year that may come in handy for others. We had a small yard that didn't get sun in one spot all day. So he made 2 moveable trolley's and we put our tomato pots on them. So he would move them around the yard to keep them in the sun all day. It was the first year we were able to ripen tomatoes on the plant. He made them 4ftX4ft. and put dolley wheels on them and then attached a rope to one end for pulling. Simple idea but really worked.