Congratulations magicwhisper on baby Ella's birth! I hope you are enjoying her sweet baby snuggles and looking forward to hearing from her soon!!
Athena- the biggest thing I wish I would have had sooner is a vibrating chair. SIL gave us her old one but the vibrating poart had broken. It took us until he was almost a month to replace but I wish I had done it earlier. I just got a cheap one- 30 from amazon-but it has been amazing and lets me actually put him down in the day for him to sleep in or keep him occupied while I cook or told laundry etc. Several times he has been fussy and I turn it on and he calls right down! Not every baby takes to them but I thought 30 was better to be out if he didn't like than 150 for the big swings.
The other one is Dreft stain remover. I cannot tell you how many countless clothing/fabric items have been saved... Just spray the item, rub it in and throw in wash and comes out stain free! Amongst the most useful gifts we received.
As many wipes as you can get. Whether you use cloth or regular, you will go through more than you think. I thought I had a 6 month supply but really only have about a 2 1/2... You use a lot!
For breastfeeding- lanolin... Don't try to nurse without using. I also really like the soothie gel pads by lansinoh... Has helped with cracked nipples. If you're pumping, the stream sanitizer bags for parts and bottles. Saves a lot of time IMO for cleaning. A good nursing cover with boning in it so you can cheek on baby. We have only given him a bottle a couple times and have used the medela one and they've been fine but someone else could probably answer that better.
Finally- aden and anais muslin swaddle blankets. I never used the cute receiving blankets that I got ( the kind that come from the store in a 4 pack.) They were too thin and small.. Wish I had taken all of them back. But the muslin blankets are amazing. Soft, breathable, stretchy... My LO loves them and I love them because he stays cool against me when wrapped up. Other blankets seem to turn into a sweat fest. They get softer with every washing and so far I haven't seen any signs of wear. They are pricy (35 for a 4 pack) but worth every penny!