I seriously dread it every year, since we have 50/50 it becomes a total mess! DH tries to contact BM to figure out who's registering who, and never hears back from her. In a perfect world we would take care of registering (and costs associated with) SS since we claim him on taxes and BM claims SD. DH usually leaves her a "I'm headed to registration on xyz...if I don't hear back from you, I'm going to register both kids and let you know the $$$ you owe for half" Of course we hear nothing from her.

Last year she did the same thing and ended up showing up at registration. She walked up and demanded to see the forms that DH had filled out for the skids (to make sure that she was listed on their contact info). He had listed himself, myself, and her under parent info. That really pissed her off. She started blowing a fit that I was listed as a "parent." Then she flipped out that the school did not send the paperwork to her address and started yelling at the poor lady working the registration table.

This year I'll be curious to see what happens. On one hand, she threatened DH with a restraining order (because he spoke to her boss about her taking the skids to emergency calls), yet she also sent a proposed stipulation that would require her and DH to attend all skids registration/school/extracurriculars together. (haha not signing that one!) Plus I guess she's really freaking out over her upcoming wedding. SD keeps saying how BM's having to go to walmart for her cake, and can't have a DJ because it's too expensive. Bummer.