When you request and complete an appointment with Hillarys Blinds you can get £20 cashback through Quidco.
**Best thing is that you don't even have to make a purchase to receive the money. **
So book them up, let them come around and measure your window, tell them you're not interested (as they are quite pricey) and you'll have made £20!
Also, Quidco don't seem to impose any limit on the number of appointments you make with Hillarys!http://www.quidco.com/hillarys-blinds/