It's mother's day where I live too (not the US) and each of my children did something according to their ability.
My 11 year old cooked me breakfast and cycled (a 14 km 'round trip as we live in the countryside) on her own to a shop to buy me chocolate, and painted me a lovely cheesy placard with a clever painted background behind a hallmark style verse 

My 9 year old made me a necklace at school in "handwork" lesson (as, of course, did all his classmates for their mothers) and tidied up the kitchen and washed up the pans dc1 cooked with.
My 6 year old picked me a bunch of daisies and buttercups and presented them in an old glass bottle he had dug up in the garden and carefully washed 

and tied a ribbon saved from an Easter chocolate around 
My DH has gone to visit his mum in hospital because she is his mum. He didn't do anything when our kids were babies as far as I remember, and has never taken them shopping, but since being at Kindergarten they've been aware of mothers day and done things within their own capabilities.
I'll never forget my first breakfast in bed - 5am plastic bowl of cornflakes and plastic beaker with a bit of water in the bottom when DC1 was 4 - she'd woken 2 yo dc2 to help her too, and he carried the beaker of water good job the stairs aren't carpeted :o :o It's so sweet when they do it themselves though.
Share your expectations though, not everyone expects the same thing or can read minds...