SAHMs - what do you do all day?

[Shetlands]

I've never been a SAHM but as a grandmother I'm doing the school run at the moment and staying at their house. This morning I walked the dog and picked up some shopping. This afternoon I watched a bit of iplayer and had a nap. Now it's time to go back to school again. Where did 6 hours go? I'd never get anything done if I were a SAHM - too much temptation to chill, potter and nap! What do you productive types do all day?

Not a SAHM but I used to have a few extra mornings whilst DS was at preschool before DD was born.

Walk the dog
Antenatal appointments/ dentist etc
General housework
Batch cooking
Shopping
Buying presents and wrapping for endless birthdays and Christmas
De cluttering/ sorting through clothes to sell or donate
Swimming sometimes!

Now I'm on mat leave but the 6 hours DS is at school go so quick! It's a half day not a day! I would love at least one when she goes to school.