Long Tall Sally have 25% off dresses right now, with free click and collect or free returns in the UK, but your delivery will cost you £3.95 in 3 - 5 days.
Ending on 16 February, you can enjoy a quarter off selected dresses from Long Tall Sally. You can't use the offer in conjunction with any others, but dresses start with the Long Sleeve Multi Stripe Jersey Tunic for £45.00. While some of these dresses are winter stock, there's also some new spring lines, so don't worry about being out of fashion for bargains.
When you look at the prices in the main window, you'll see them at full price, but when you click through to purchase, 25% will be taken off. That's great - better than the original prices, anyway!