Congratulations! One thing, not as major as some of what other commenters have mentioned but worth knowing, is that you should not feel guilty about buying used clothes/cribs/etc. for your kid. 1) most baby clothes get worn very few times before they're outgrown, so you can get them in good shape at garage sales or thrift shops 2) your baby doesn't care whether it is dressed stylishly or not, it just cares if it's co…
If you buy a used crib just make sure it's in good shape and hasn't been recalled.
More practical advice: Costco brand diapers and formula are the cheapest we found, but still good quality. Well worth the membership. There are also ways around going to Costco without paying for a membership. You can just google it.
Walmart brand wipes were the cheapest (and not useless) ones we found. We buy them in lots of 1200 at a time for about $20.