The Red Bow coat above is the cheapest of the lot, available from Miss Selfridge for £79. It's a delightfully prim and proper design that will go perfectly with your new pencil case and satchel.
Another appetising alternative to the usual black and grey and navy designs is Zara's short pink woollen overcoat. Who says pastels have to be for summer only? Zara are one of my coat heroes this year - I also love this tomato red number and their hooded wool coat. You can think pink, however, for £79.99.
Boden also have some brilliant designs in stock. I'm weirdly snobby about Boden - in that I think I might actually turn into a grown-up the moment I buy something from them. Shame because their 1950s jacket would look amazing against autumnal colours, and how fab are those decorative buttons? This is the most expensive design at £149. Their Mia coat, and for a little more money, their Soho coat are ridiculously tempting too.
For something a little less grown-up, a duffel coat is worthy of the chicest of school girls. This design by Cooperative has a toasty looking shearing collar too. It's £98 from Urban Outfitters.
Sian featured a gorgeous huge-collared coat from Joy in one of her recent Friday wishlists. This Oasis two-tone drape coat is a cheaper alternative at £98. It's so swishly stylish, I'll even forgive its grey colour scheme (it's also available in 'natural).
This Topsham coat from Fever is apparently inspired by rural romance. I grew up in Lincolnshire and, let me tell you, my countryside love affairs were never anywhere near as thrilling as this design. It costs £119 and is available in a great range of colours, from petrol blue to port. I've picked it out in the Racing Green, as I think it'll look just superb on Kat. Especially when worn with a squirrel jumper. Roll on the delights of autumn.