Rollerskaterabbit got an interesting thread going on wasting money which got me thinking - what do you not mind spending a bit extra on? What are you GLAD you've splashed out on?
I bought my DD a pair of Clarkes boots the other day. They cost £50, but her feet were measured, the boots are soft leather and really well made, and from experience I know she'll have them for a year at least. Still hurt but I think it was worth it.
I never feel guilty about buying books
John Lewis Egyptian cotton sheets and duvet cover. Had them for five years. Still crisp, white and perfect. (Unlike me who's become more beige and slightly soggier) 