I'm trying to figure out when to have my son's birthday party this year. His birthday is toward the end of June. We are going on a family vacation in the middle of June, so that takes up two weekends. The weekend I was planning to have the party is the weekend after we get back (the 24th), but I have a friend who has already sent out invitations to her daughter's birthday party for that day. I could have my party on Sunday, which would be the next day, but we have a lot of the same friends, so I don't know if they would want to go to two parties in one weekend. What would you do?

I can't do it the following weekend, because we are going out of town for Fourth of July, and the first weekend of June is our anniversary, so we have plans already.