My main gripe about the changes back and forth are when they occur. Early March is too early to Spring Forward, even down here in the south, and early November is too late to Fall Back. I am old enough to remember when we DID go DST all year. I think it was in 1973 during the first oil embargo, and the idea was to save energy. Not really sure how, or if, that worked at all. I do know that in central Ohio, where I was at the time, it stayed dark until pretty late in the morning, and everyone was talking about the kids at the bus stop at Zero Dark Thirty.
There have been studies that show an increase in traffic accidents during a period after the transition, and other studies that we are more refreshed if we wake up to a slowly increasing level of light in the morning. I know I do.
Now, since this is a SAVINGS plan we really need to get some interest on the savings. We could save all that daylight during the summer when we have plenty and get it back in the winter when we need it!