I know "relaxing" takes different forms, but it sounds like work to me ! As long as you enjoyed it though, that is what counts.
It is always a good feeling to get a few things checked off of the to-do list.
I'm just starting my Sunday, slept in because I stayed up half the night. Tried to paint some, but happy things weren't really coming out. Having some coffee and later will go to Mom's for a visit. Been three weeks since I have seen her since she went on vacation with my brother for a week. I have no other plans, so the day is open for surprises.
Of course, it was yes. But it's enjoyable to do, the work itself and the result of it. To me that brings satisfaction I guess. I relax too, though.
Sunday sleep-ins are awesome, I do it most Sundays, although a sleep in to me is only about 07:30-08:00 as I get up earlier on the week days. I hope you found some pleasant surprises in your day.