I buy Boden sometimes in sale sometimes on ebay as it resells freat
I do buy a lot from Gymboree US as the exchange rate is too good to miss even with £15 p+p, I buy a whole load at once, they drop the ranges really quickly so you have lots of choice, my dd is quite small so the cheaper brands in the UK do not fit her, Next is enormous as is george stuff on her!
I use charity shops an awful lot too, I love browsing clothes!
H+M is brilliant too but miles away fro me sadly.
Wish they were online!!!