Mine shared a cot in early days. Firstly next to each other, then at opposite ends.
I found two bouncy chairs invaluable. I managed to bottle feed both at the same time by sitting on the floor with one bouncy chair on either side of me. And if you bottle feed, a Tommee Tippee machine is really good. I know there's been some controversy recently about mould, but mine was fine.
If you'd like to breastfeed, I'd advise getting a proper twin feeding pillow. I had a Peanut and Piglet one, and I'd not have managed without it.
A decent pushchair is essential. I used the Uppababy Vista. The carrycots are safe for overnight sleep, so I kept them downstairs and used them for daytime naps instead of buying Moses baskets.
Also - cleaner, night nanny, tumble dryer. You can probably manage without all of these, but if you have the money, they're really handy. Maybe instead of gifts for the babies, people could club together for some help for you. Some of my friends did this. I got an occasional babysitter for the babies when I was in the house so I could spend time with my oldest.
There's a few Facebook groups for parents of twins - look for Britain's parents of twins and Multipals.
Good luck! It's hard work having twins, but it is lovely.