I'm really talking about coats, jackets, boots and handbags, in classic shapes and luxe fabrics. Although these do evolve with the times too, if it suits you well, and it's not too trend focused, then you can easily pass it off for years to come. Invest now, and shop around, you should not pay a penny over 50% off at this time of year.
Here are some of my own finds.
Trench Coat Jaeger @ Harrods, now £299 was £760, 60% off
Ankle Boots, Bertie, now £59 was £119, 50% off
Clutch, Karen Millen, now £25 was £95, 74% off