Diapers and bottles and what else? Oh my!!

Last night, David and I ventured into the baby store to start our registry. Talk about overwhelming! I had done some research on the "big ticket" items like car seats, strollers, and high chairs, so I knew the safety profiles and recommendations for those, but there were so many little things we didn't even know where to start! How many bottles does one really need if one plans on breastfeeding? I know we at least need some because once I go back to work I'll have to pump. Do they make diaper pails that don't require expensive refills anymore? (They do--it just took a while for us to find one). Do we want a swing? A bouncer? Should we register for the next size carseat even though we'll be using the infant carrier for quite a while? How many sheets and towels does one baby really need? Do they make anything that's not gender specific (but not plain white) so that we can use it for more than one child?

It doesn't help the anxiety level when you have all these questions and a husband with an itchy trigger finger who just wants to point and shoot the gun...it was worse than registering for the wedding! At least I had some idea of what I would need there! We're going to go back and add on later, but I think we'll wait until we find out what we're having.

In the meantime, any suggestions would be greatly welcome: what did you find you could absolutely not live without? What did you register for that you ended up only using once or not at all?