I am SAHM with DC 2.5 and 6mo
During day I do childcsre and all house chores shopping washing tidying cleaning cooking etc no probs. we have big house (5bed 4bath) and no cleaner.
Laundry room is on ground floor.
All bedrooms and bathrooms upstairs except an DS loo.
As I clean and tidy I sort things into piles eg 6mo clothes, 2.5 yo toys etc, then put sorted piles on stairs to take up as and when I go upstairs.
I put each pile on a different step so they don't get mixed up agin. I put them On very side of step so still 60cm or so of free step to walk up and down.
I never go up without a pile, unless im carrying the baby. As at the moment I am quite often carrying the baby, on a given day there can be anything from no steps to four or five steps with piles on. It's usually less than two but today particularly bad as back from holiday so loads of washing.
I try to put away any piles I haven't managed during day once kids asleep (doesn't always happen as want 
)
My DH said I'm making a death trap and I should take things up immediately
I said this is my method and the only way I get things done. And pointed out he never carries a pile up, even though never carrying anythkng and even if it is a pile of his clean washing.
He said I am just being lazy,
Who is being unfair