Bonmarche have a continuing upto 60% off Sale with FREE C+C to store PLUS until 8th Sept they have an EXTRA 20% off EVERYTHING site wide using code BONUSD16.
It's unusual for codes to work on Multibuys or 3 for 2 offers, but this code seems to, ie 3 for 2 on Women's £4-£5 knickers, added 3 x £4 to basket, added code & it discounted them to £6.40 for all 3. They also have lot's of twofer offers ie 2 x £20 knitwear for £30, by using the code, its takes the 2 items down to £24 for both. So even if nothing catches your eye in the sale, the whole site is worth a browse.
Link goes to the sale, will pop links to the offers & items mentioned in 1st post