I'm on .W.I.C too but they help a lot with my baby formula. Although she's only on the bottle 4 times a day now. W.I.C doesn't pay for the baby food. Now that's expensive...I've started mixing it with mixed grain cereal to help it stretch!!!
Diapers, I use the really cheap diapers (white cloud, target brand) and they work just as well!! I do like the huggies the best though! (sams is awesome with diapers and wipes and things to clean the house)
wipes, I get the big box of refills and it's only like 7 dollars.
Clothes, this area just sucks!!! Oni didn't even wear all of her 0-3 outfits!! So make sure you stock up on 3-6 & 6-9. Cuz believe me...They grow fast!! I keep her naked a lot because it's literally not worth me dressing her!! Her drool soaks it up within 5 mins!! She usually just has a bib and diaper on!! But it's not cold down here yet!!
Stroller, unless you get one....I don't know if I would buy the "most expensive" one. I've just used an umbrella stroller(a smaller more portable on) since she was 3 months.
High chair, they got cheap ones. Again...Unless you're given an expensive one...I would'nt get the most expensive!
Good luck....Go with the way that best fits you and your mans budget!!
Sarah