If Bozza' still looking at this thread my rules of laundry are:
Mine & DH's clothes are washed in bio powder and nice scented fabric conditioner, but the DC's always have to be done in non-bio and sensitive conditioner.
Towels and flannels are washed separately from everything else (OK, I admit sometimes I wash white towels in with white sheets, if I don't have a full load)
Everyone's underwear has to be washed at 50 deg minimum, but mine and DD's white knickers preferably at 60.
Never wash underwear with tea towels or table cloths.
I prefer not to wash things made of what I call hard fabric (like denim, or trousers) in with softer, delicate fabrics. I think it wears the delicates out.
Because I do have an environmental conscience, never put the machine on unless its full (mine's a new 6kg Hotpoint £279 from Comet coupla weeks ago). I had a scary 6 days without a machine, so perhaps that's why the laundry's particularly out of control just now.
Avoid using the tumble drier if at all possible.
Sadly, all this results in about 15 regular loads ...
For DH & Me:
Hot whites (60 deg: bedlinen, towels, tea towels)
Hot whites (60 deg: DH white shirts, white t-shirts, knickers and bras)
Warm colours (50 deg: mainly DH coloured scants, socks for both of us, darkish coloured t shirts and shirts that can take a 50 deg wash but aren't light coloured or white)
Dark colours (40 deg: black trousers, jeans, DH black pants and socks although these can also go in the warm colours wash above)
DH work shirts (60 deg: I do 6 or 7 at a time and that's the machine full, he's a big lad)
Hot colours (coloured towels, flannels, tea towels, sheets, tablecloths)
Light delicate colours (40 deg: mainly my t shirts that I think might shrink, blouses - usually this combines with a load of my DD's more delicate pink stuff)
For Daughter & Son (washed in non bio powder and sensitive fabric conditioner)
Towels and flannels
Coloured bed linen (their duvet covers and pillowcases)
Hot whites - sheets, white t shirts that don't shrink, DD's knix and socks
Warm whites - everything else white or very pale that can take 50 deg
Warm colours - pastel coloured t shirts, pyjamas, knix and socks washed at 50 deg
Soft darks - dark t shirts, tops, PJs, socks and pants, hats, gloves etc (DS has mainly dark pants and socks)40 deg
Hard darks - (denims, dark coloured skirts & trousers, coats, 40 deg)
Mixed everyday wash - bright coloured everything except undies that have to go in at 40 deg
Light colours 40 deg wash - mainly DD's pink stuff, tops & t-shirts, tights, ballet outfit, swimming cos etc, to which I might add my delicates to make up a full load)
I wash all our woollens & silks in Persil Silk & Wool, but this also divides into two loads, 1 dark colours and 1 light colours.
By my reckoning thats 17. I do one load a day. Which means that our beds don't get changed as often as they should and some things get left in the bottom of the laundry baskets for months.
Can't believe how much time I've spent typing this out, but it feels good to get it off my chest. Am not housewifely in any other respect at all, this just seems to be my thing.