This post demands a tongue in cheek response.
working poor don't have enough time to keep immaculate homes and those on benefits don't have the money for the cleaning products or storage...or in a minority of cases just don't care.
lower middle and middle/ upper middle confusion going on here I think.
Lower middle = working class made good, eletricians, plumbers, two income families who don't quite make the bar for benefits, or those on working tax credits. Property developers and small business owners = the 'rich' lower middle.
Having an immaculate house is a good way of saying 'we've made it, we're doing really well, we are as good as anybody else, don't you dare criticise us. Also, there is a definite ethos of the home reflecting who you aspire to be. Also likely to be very concerned about fashion (clothes and interior design), and consumables (having a big telly, a great phone, etc.) Children wear immaculate clothes, perfectly presented, get spoiled ridiculously (girls with 100+ barbie collections).
Middle and Upper middle classes are more interested in educational pursuits, outdoors living and / or 'free range' child rearing (although wait til the sats come round). They like shabby chic and clutter.
it's a way of saying: we really don't need to try so very hard, you can't touch us, we have nothing to prove.
Childrens' joules and boden clothing usually is mismatched and very well washed. They might have a raggedy slightly vintage looking (small) teddy bear collection. Lower middle imposters wearing joules and boden are easy to spot, the clothes are much too fresh and usually worn with the wrong (too trendy) coordinating pieces.