Evening classes that start at 5:30 or 6, not 5, because that's when a lot of people get off work, and a variety of classes in the evening, not just the same 2 over and over :-D
I'd love to take more classes, but can't because they are not offered. Can't spend my whole Saturday in a quilting class, because the laundry and grocery shopping wouldn't get done.
Plus everything everyone else mentioned.