I do at least 3 loads a day but also find that I have a few days 'off' as a result.
I've two boys and a 7 yr old girl who is the fussiest multiple clothes wearer going. (No shit - see below - she gets it from her mother). We had a drama this morning over the size of checks on her dress and the purple pants that hadn't been washed ready for re-wearing.
I don't take this ridiculousness, I tell you, but it does make me mad.
Anyway, in my case I put it down to my keenness for separating loads by colour rather than simply darks and lights. We do pinks and reds, beige and mid browns, blacks and school trews grey, whites only, whites with colour and then there's delicates and obscures. There are probably other combos I've forgotten, like bath mat white wash which isn't a hot wash because of rubber on back, etc. and so on and so forth.
Sometimes I have to re-wash because stuff sits in the ironing pile so long it needs a wash before it could possibly be wearable.
And we too wear clothes more than once. All except pants and socks. We never do that ever.
I've just bought white long johns, vests, socks, knickers and boxers in bulk so that maybe I can get over my obsession with separation. Daz colour lock or whatever it is just doesn't cut it.