That's a dangerous place to be! Bored with nappy stash usually ends up with buying more! I'm trying to streamline ours as my tastes have changed! Agree - trying dying/adding a fancy wrap? What nappies do you use frances?
Could you do a temporary trade - give someone else the chance to try yours and vice versa, safe in the knowledge you can get your back if they don't work or you become equally bored with the ones you swapped for?