Mawbroon: I used washables with mine until she was toilet-trained, although I didn't start until she was a few months old. The first poos are SO AWFUL, they are like something that comes out of Sellafield. They stain everything that they touch (=every item in your house).
I used Kushi's washables because they were the first brand I saw on Ebay. I loved them and they were a lot simpler than other types that I saw my friends faffing with. It's all in one so you don't need to worry about liners/covers etc.
When you have a newborn you are doing so many loads of washing a day that to be honest, another load doesn't make any difference. Newborns are constantly being sick/pooing, and you are constantly leaking and spraying milk all over your clothes/partner/visitors/soft furnishings, so the amount of washing is like nothing you have ever experienced!