Activity for Sarah

Am I in charge of figuring out what MOG and MOB are wearing, my FMIL has been sending me pictures of outfits and asking me what I'm planning on having them wear. What are you guys doing for the mothers?

Does anyone have any suggestions for outfits for engagements? We're going to a lake with a boardwalk that goes around it? I have some ideas, but the bride in me is freaking out.