I buy Boden in the sales; I first got some after reading about it on here. Most of Ds's clothes for his 1st year were second hand. I got round to buying Boden after he got old enough to wear stuff more than 3 months or so.
I love the thick cotton on his skin (he has eczema). We also buy Frugi (in the sales) jojo maman bebe (in the sales), John Lewis (in the sales) Boots baby range and Mothercare. I get put off by thin, washed out looking stuff in the supermarkets.
When DD came along, I followed a similar-ish pattern, but supplemented with some less expensive bits from zulily (dresses and cardies for £7 -£8).
I do love my kids to look nice; I like their clothes to be good looking, practical for play and to wash well without needing ironing if possible. I think clothes can be fun.
My husband (who doesn't know much about clothes) thinks DS's clothes are great because they are comfy and casual in the sense of easy to out on trousers and soft, colourful, long sleeved T shirts. We get lots of compliments on how DS is nicely dressed and DH is incredulous because he thinks of this style as being very casual and age-appropriate, the opposite to a smart, starched, Lord-Fauntleroy type scenario. We don't do dry clean only clothes.
Boden sale prices can be as little as £3 for a girl's Tshirt, £4 or £5 for a dress, £5ish for boy's shorts or £6ish for jeans. This is for the plainer things, but plain and good quality can look gorgeous.