I also didn't overspend on Mother's Day. Not sure how she took it. I brought home a gift from a work trip last month and she told me bluntly not to buy her gifts.
Gifts = Pursuit, don't do it.
My W is not getting any gifts from me, of any shape or size, for any occasion. She will get 1 small gift from each kid for Christmas, Birthday and Mothers' Day, with the kids being part of the selection process. Eventually they will take on that task for themselves.