I'm a great believer in everything at the right time. Go on a crazy spree if it's the right time to do it but choose your moment carefully and beware of impulse buying.
LemarI used to prefer cash but I'm more and more drawn to cards because with certain cards you get the full lists which you can then pass on to your accountant so you don't have to do the whole receipt, receipt, receipt thing as it's all itemised.
Lemar