I'm gradually building up a collection of brushes for my fledgling make-up kit. I've been totally converted to mineral make-up and I have a hugely expensive Bobbi Brown brush, which is lovely. I also have a BB concealer brush, also hugely expensive - can you see where this is going?
I am now on the lookout for an eyeshadow brush - but can I avoid paying £23 for a (probably lovely) BB brush? I bought a very cheap one from the supermarket, but it hardly seems to transfer any product - even when I can see it on the brush it doesn't seem to appear on my eyelids, IYSWIM. I know I'm short-sighted, but even so!
Can anyone recommend a brand which is good without breaking the bank? If £23 is what it takes, then I'll save up and swallow the cost, but can I get as good a product with less outlay?
And if anyone can advise me on how best to clean my brushes... I assume that I can't just take them in the shower with me 
Thank you from a clueless mumsnetter!