George at Asda - £28
Part-raincoat, part-dress coat, here's a clever little number for a daytime event when the weather's changeable. And it may be Carla Bruni-inspired, but it's very easy on the wallet.
www.george.com; 0500 100 055
John Lewis - £145
The applique trend is everywhere, but this is a particularly subtle and classic take, and would be very chic worn with jeans and ballet pumps, or over a shift dress for work.
www.johnlewis.com; 0845 604 9049
Joules - £49
Swing jackets are here to stay, it seems, and this apple-green version from Joules is very Katie Holmes. Just sling it on with white jeans, a straw bag and film-star sunglasses.
www.joulesclothing.com; 0845 606 6871
Donna Karan - £1,200
Yes, this is crazily expensive, but just look at it: it's gorgeous. And with its buttermilk colour, waist-cinching belt and flattering drapes, you could even say that it's a sound investment.
www.donnakaran.com; 020-7479 7900
Vivienne Westwood Anglomania - £280
Anglomania has put Westwood's saucy cuts and exaggerated lapels within the financial reach of mere mortals, and here's a perfect example.
www.viviennewestwoodonline.co.uk; 020-7924 4747
Warehouse - £55
Short-sleeved jackets were a bit of a mystery at first, but now we love them. Slip this textured jacket over a long-sleeved white shirt for daytime, or over a dress for a night out.
www.warehouse.co.uk; 0870 122 8813
Whistles - £250
It's all about the leather bomber this year, so start wearing in summer with the sleeves pushed up, Miami Vice-style, over a little dress or jeans, and then adapt your style for autumn.
www.whistles.co.uk; 020-7487 4484
Roxy - £65
Surf-wear label Roxy might be an obvious place to go for bikinis and baggy shorts, but you wouldn't expect to find something as original as this relaxed and cool cap-sleeved jacket.
www.roxy.com; 020-7436 6800
Monsoon - £55
Monsoon may not be edgy, but when the wedding season is upon us, it's a godsend. This pretty fitted jacket would look suitably demure worn over a flirty floral-print dress.
www.monsoon.co.uk; 020-3372 3000
Topshop - £45
Henley's over for another year, but the blazer lives on. Here, wide stripes avoid the barcode look, but don't combine with an all-white outfit unless it's for a Great Gatsby party.
www.topshop.com; 0845 121 4519