So Much To Do So Little Time

I belong to three groups and two of them meet weekly. I work retail. I also read about a book a week. I enjoy being so busy but I know sometimes my husband would like to have some time off. Yet, because of people inability to make plans ahead of time. My husbands days of rest tend to be full of the stuff other people couldn't be bothered to think about ahead of time. I'm kind of upset with my sister. I had to turn her husband down for a birthday dinner. My sisters birthday was 3 days ago and they called the day of to ask if we could do dinner. We were already getting into our gym clothing when she called. We turned her down and I'm still feeling guilty about it. But she also needs to learn not to do that to people. It's rude.