That is one of the few things around my place I do not do. I could if I really wanted to, but for me, the relatively low amount it costs me to have someone who really knows what they are doing, is insured, and does a great job, makes it hard for me to even think about it. I have seen a ton of members here tackle it, but this is one area I will sit on the sidelines for. I do get involved lol! I do prepare the water for its winter nap, do not leave any chemicals to the company who does the close.
I don't even open the pool either haha, but that one would seem the easier of the two. Again, the relatively low cost to have the one who closed it, open it right back up is just appealing to me.