I am one of those people who will try a different shampoo and conditioner every time one runs out, mainly whatever is on offer (blush).
I got a free sample of James Browns new Scandalous dry shampoo at a Topshop student event. I was impressed, the tiny bottle lasted quite a while, it looked good, it worked well and it smells heavenly!
I then saw the conditioner from the same range as the free gift in Glamour magazine, since it was a good sized bottle I thought I'd buy it. Again a beautiful scent that made me feel like I had splashed out and spent a lot on a luxury item.
The prices for the full sized range at Boots actually is not too terrifying - most items being £5.99. This is a luxury I might buy more often.