McKim which brand are you using? I must go buy one this week still - umm maybe next week rather
The stuffy nose is totally normal in a newborn. Just keep rinsing with saline and get one of those bulb suction things to help pull it out as it makes feeding hard too.
If you are breastfeeding, put some breastmilk in his nose, it helps wonderfully to clear it up!
Sounds like your baby is a 9 nappies a day kind of guy! Yes in the beginning they go through them super fast! Dont open another no 1 pack if you think you can go onto a no 2, cos you can swap the closed packs out for a bigger size.
Kaylee used to feed 2 hourly in the day and 3 hourly at night, eventually stretched to 4 hourly. It was hard work, as with breastfeeding you cant have someone else do it!
If you can express now that your milk has settled in, from about 6 weeks do so. Then you can skip a feed, go take a nice bath or go to the shops so that you can get a little break too.