I agree with everything that has been said - especially the fastenings at the back. What a pain! A couple of things to add...

* Zip up fleecy vests are great alternatives to jumpers on moderate winter days. I have two and they are perfect for the autumn mornings - and they look so cute!

* Long or short sleeved jumpsuits with no legs are really good to go under long pants - this way you're not worrying that bub's belly will get cold if a shirt becomes untucked.

* Don't buy anything new! In all honesty, I have only bought ONE new outfit for Charlie in his whole life (and he's 9 months old!). Investigate good op shops (especially BEFORE you have bub) and go nuts. If you go once a week or fortnight on the same day you'll get to know the staff and vice versa, and they may be able to look out for things for you. You'll save so much money it's not funny, and you will also not feel so bad if something you bought in advance doesn't fit in the right season (it's better to "waste" $1 on a growsuit than $10!). Obviously, this can sometimes take a little more effort - you have to be prepared to spend a few minutes going through stuff to find some good quality stuff - but it is well worth the time. I love opp shopping too, because it gives me something to do when I'm sick of being at home - I just plonk Charlie in front of the toy section while I'm browsing nearby, and he loves it.

* Only buy hats/beanies with some kind of fastening device (obviously you have to be safety concious when you're looking for them...) - Charlie doesn't keep any of his hats on, so I need to invest in some with chin straps.

* Get bub used to wearing hats and sunglasses early. This will get them into good habits. Sunnies are about $20.

I will write again if I think of any more.