I used to grit my teeth, and go all out for my mum as it was important to her. So she'd get card, flowers, gifts and a meal out. I think she liked the bragging rights.
I dislike everything to do with Mothers Day and right from when they were babies, I made it clear to my husband that nothing should be shop bought.
If they wanted to make cards, that was fine, but I feel that if you care enough for your mum, you'd be doing little things for her throughout the year, and not just a big gesture on one day.
So my expectations have always been minimal - plenty of cups of tea throughout the day, and a collectively produced meal. As they grew up, a visit would be nice, but I'd not sulk if they were busy.
That said, I am currently sitting in the hairdressers having a ruinously expensive Keratin straightening treatment, courtesy of my children.
We're all going out fir dinner tomorrow, but that's really for a birthday celebration.