Formula will be a little cheaper on Amazon, not much. Luckily my wife has been stockpiling diapers for months since she gets them at a discount through work. Our spare room looks like a Pampers storage facility.
Orrr...wait for it...not have insurance and just not have super stupid prices for things! Could you imagine if a trip to see the doctor for 12 minutes so that they can say "your baby looks great...weight is great...everything checks out fine" DIDNT cost 1000 dollars?!?!