Good thread. Things I found slightly useless were:
the Bumbo -my DD's thighs were also too fat by the time I remembered I owned one of these.
Walker - apparently can be dangerous and our house is full of different levels so I took ours to the dump.
winter coats for tiny babies who are wrapped up in their pram cosies with a blanket and several cardigans anyway. And hell on earth to get their arms in. Those Marks and Spencers ones are absolutely terrible. Very cute but my DD wore the THREE she was given as presents about once each. However, the brown furry bear suit I bought in Mothercare was amazing when she was in the sling as it guaranteed lots of cooing.
socks for babies under six months. Even the GAP ones didn't stay on. I used tights instead, even under trousers. Same goes for shoes.
nipple shields - why on earth did I buy those?
And the biggest joke of all, the vast numbers of re-usable nappies I bought, only to decide within one nappy change that it was going to be Pampers all the way. Shame on me.
sleeping bags for babies that want to stand up in their cots. I just use warm PJs and a blanket now.
dinky little travel cot that you can carry on public transport. hardly ever used it and have now realised that she can't stand up in it (it does up at the top) so she will be livid when she next goes in it. would have been much more sensible to buy a proper big one.
nursing pillow - I know lots of mothers swear by them, but I didn't really see the point of it.
BUT, great buys were:
the ridiculously over-priced Boots nappy bin. Worth every penny.
play pen - she adores it as it is her own little space.
maclaren buggy - LOVE it and will never use her ginormous transporter system again...at least not with her.
ALL her clothes - you can't have too many little dresses. a joy choosing what she is going to wear every morning.
little pushy truck with bricks in it.
little bath seat - means you can turn your back for a micro-second while you reach for the towel you have inevitably forgotten, and know she won't come to any harm.