First of all an hour away isn't that far, and definitely doesn't require an overnight, all weekend visits. You said your husbands entire family is local, are they constantly visiting and staying overnight? Once a month, every other month, is way too much, especially for overnight. That's such an invasion of time and privacy. Does your husband work all week? If so, I'm sure he looks forward to spending the weekends with you and your kids, not you and your sister and kids. You have to look at the big picture. I get that your kids and sister adore one another, but you have a family with your husband and kids, which should always come before your sister. I have nieces and nephews two hours away, who I ADORE, and our family is extremely close. But I would NEVER even think about spending entire weekeds with them on a regular basis. I respect the fact that my brother and sister are married and have other priorities, their spouses and kids. I also have a life of my own and have more to do than to impose on my siblings and their lives. I'm at every birthday, recital, graduation, school performance and other special events. So, there is really no need to plan out a yearly calendar. Relationships are hard enough, without adding family into the picture. There is obviously more to this story?