Dress-For-Less does what is says on the tin, it is a clothing store which offers customers the chance to buy clothes at very affordable prices. they are currently offering 20% discount on all items with the -20% icon. they also have a refer a friend scheme, £15 for each friend you refer.
For business dress consignment shops are a great way to go. The clothes are generally like new, and only lightly worn. I have found close there that still have tags on them. Also as adults we don't change sizes very often so you can buy clothes at the end of the season and then use them the next season. The key is to get rid of things as you add new things, that way your closet is not filled with clothes you don't wear.