Wow, chatterboxes on here today! 
Never used or even heard of a pram cushion! We have a foot muff which comes with the pram (well, you pay extra, of course!), and this has been good enough to keep DS warm in the winter. And yes, good idea to hold off buying too much at this stage, you don't know what you might get as gifts, and you can get what you need as and when.
Lots to respond to re the homeschooling so sorry for not namechecking, but I want to rush out a response before this thread gets too ahead of me!
Homeschooling feels very right to DH and me for our family. Our approach is broadly that of unschooling, in that we facilitate learning for our DC, make suggestions, leave out inspiring articles/projects, and let them learn at their own pace. They don't have to stop what they are doing when the bell tells them to. We have no concerns about this approach right now. DS is inquisitive and eager to make sense of his world. This will just continue once he reaches school-age. We will regularly reevaluate, of course, and should we feel we are failing him and it's not working, we will investigate schools. He is also able to tell us if he would like to try school when he is older.
I know a couple of teachers who are homeschooling their own DC (or plan to, should they ever have DC). I also know a couple of teachers in the UK, and though I am sure there is more to teaching than spelling, their terrible spelling does not inspire confidence in me for wanting to leave my child's education in their hands. I know lots of people don't think spelling matters, but I do! I also know lots of teachers can spell, but with schooling, you pick a school, and you never know which kind of teacher you are going to get.
We also know a woman who was homeschooled, and she is wonderful! Perfectly well-rounded, well-educated, personable, successful etc! One example does no a case make, but just to counter the above comment about the guy who was homeschooled not being all that!
We are not at all concerned about the socialisation aspect, and think a non-school environment is actually better for children, rather than being cooped up with 30 children all the same age as them. DS will be encouraged to try whatever sports, musical instruments, drama, art classes etc, he wishes, and that seems sufficient to us for him to have children around his age in his acquaintance.
And no offence to teachers, but I don't see how they can possibly give each child enough individual attention, when they have 29 others to cater to. Our way, we can focus on our DC's specific needs (we are aiming for one more DC, so at most he'd only have to share us with a sibling. Unless we get twins!
). And without wanting to sound all my child is g&t, we do think he is very intelligent, and wouldn't get as much out of school in a class setting as he would with more personal focus.
We also plan to travel the world (as in move around every 18mo or so and live in a new country for a while, rather than just holidaying), and give him an understanding of different countries and cultures first hand. DH is working to free himself up from a nine-five job within the next few years, so we can travel more easily, and both be there for DS. It's not about feeling we have enough knowledge of our own to 'teach' DS, it is about working together to show him HOW to learn, how to research, how to think, how to work things out for himself. If he has specific interests that we feel we aren't able to satisfy, we will hire tutors. The main thing we might need help with his science equipment, but BIL is a science teacher, and has offered to advise as and when! Well, it's a work in progress, he is only 2.2 at the moment, so we have lots of time, but for now, it feels like the right thing to do for us.
Sorry if I missed any points! Hope I answered ok! Feel free to ask again if I did miss something! But ^^ seemed very long already!
In other exciting news, I found Malt Vinegar here (in a British shop)! Woo hoo! Chips tonight!