National Mother-in-Law Day takes place on the fourth Sunday in October — on October 26 this year. Mothers-in-law have a special place in our lives. Whether they’re helping with the kids or supporting us when our own parents are unavailable, these “second moms” are always there to help, contribute, and, sometimes, lovingly criticize.

Bringing two families together isn’t easy. On National Mother-in-Law Day, take some time to appreciate the mothers-in-law in your life, whether you have one of your own or know some women who are mothers-in-law themselves. If you have married kids of your own, take this special day to treat yourself!