Most - also philosophy skincare, makeup MP and smashbox and birkenstocks spring to mind. However they are probably over taken by a summer suprise cooks essential frying pan from a few years back.....And then I remembered a set of 5 pairs of silver gem stud earings I bought I cant remember how many years ago, been wearing them constantly over the years of having small children hanging off me.
Least - possibly the leathal chopper mandolin thing, but unlike fraggle mine is still in the cupboard or a thing to clean paint brushes.....But the one thing I know was never used was a thing to go in the car to reduce petrol consumption.