We're a family of 7.
Our washing breaks down to something like this:
2 loads a day, Mon-Sat,
Clothing- 1 load a day, Mon-Fri, 2 on a Saturday.
Dc1 & 3 bedding on a Monday,
Dc2 & 4 bedding on a Tuesday.
Dc5 bedding on a Wednesday.
Towels on Thursday (although some do also just get chucked in with the daily clothes wash, as it's usually dark, as are most of the towels, if they've only been used once then dumped in a heap by the dc).
Our bedding on a Friday.
The second wash on a Saturday is whites as the dc's school shirts are white.
They all have 2 winter coats (one for school, one for when we're out & about but can also be used for school in a pinch) but I can usually find enough for a small load in the evening if they happen to get it dirty at school.
They have a fresh shirt for school each day but usually only change trousers/skirt & card after 2 wears, unless it's actually dirty. They've always worn their pe kits to school.
It's all put away as soon as it's dry (& if necessary ironed).
Mix of tumble dryer, hanging outside & a clothes horse (we have limited indoor space for them). Unless it's going to very cold/ wet everything starts out on the outside line. My machine has a 1600 spin though so stuff is isn't all that far off dry when it comes out which means if I do need to use the tumble it's not on for long.