Okay - so I have an obsession with making diaper cakes. But I think this stems from my obsession with diapers in general. My family members will tell you that I am always on the lookout for a good deal on diapers. I buy diapers maybe once every 3 months or so - I admit it I am a diaper hoarder.
I buy in bulk with coupons/rebates/etc, I have to get the best deal. I am helped with that by my trusty source for diaper information Baby Cheap Skate she posts the best diaper deals every Sunday. Although she encourages buying jumbo size packs I pretty much always buy bulk and get the best prices.
Right now I think I must have at least 200-300 diapers for my son. I stocked up in May. I probably will not have to buy another diaper until September!