Everything around the house - cleaning, cooking from scratch, decor, managing contractors, gardening, dropping in on our elderly relatives with shopping. After school, hosting play dates, ferrying dc to various activities, coaching, and also homework and family time. In primary we averaged 1 weekend in 3 in our camper van, with occasional weekends abroad.
The work life balance for dh was fantastic - no housework, some small bits of maintenance or gardening, time to relax, pursue hobbies and travel. Lots of family time. In terms of work he could be flexible, work late, go abroad knowing he had rock solid childcare. He didn’t have to wonder if his shirts were clean, pick up his suit from the dry cleaner or stop into the shops on his way home. He could focus on work and just make money. Which he did.
Of course, he didn’t have to worry when the dc were sick, because they were with mum. If he couldn’t make sports day, or the nativity play or the parent teacher meeting, I was there, and sometimes with gps too. From his perspective, having a sahw was his preference. I’m not sure it was the best thing for me personally, but the family benefit was huge.
The other time filler for me, was neighbours needing lifts, and favours, other parents needing a childcare last minute, and all the various things that get dumped in your lap because you’re just at home doing nothing.
School holidays were great. Some years dh was able to take lots of time because he hadn’t used it up on sick days, etc. We did road trips in the van across Europe. Brilliant memories. Camps were optional - our dc usually did one with friends because of fomo but weren’t inclined to do more. Typically they’d get a project - redecorating a bedroom, building a tree house, learning to sew, making a Lego movie, coding … I just supported them to follow their interest and we went on lots of outings, read our way through the library, fun.