Baby wearing is a god send!
Video and respiratory monitor was well worth the money.
Forget all the expensive stuff - at first all my bub needed was me, my bed, my boobs, nappies and clothes!
Play mat - by about 2.5 months my DD was happy to stay on there by herself long enough for me to have a shower, eat etc.
Night light for night feeds.
Bed sharing has saved my sleep - I realize this isn't for everyone though.