I fall down when I buy fruit and veggies - I'm always mindful of having a rainbow-coloured selection of F&V, and i have an upright fridge instead of an upside-downey (oh I dream of an upside-downey) so there's often something that gets left mouldering at the back. It's pretty small though, but I always feel quite liberated when the shelves empty up.

ALSO - I find when I'm in control of menu choices & cooking dinner, a lot less of the fresh gets wasted...DH however has some kind of fridge-blindness going on. In fact he has very poor fridge-mojo, shoves all sorts of things into inaccessible and illogical spaces.