Hi Jo! Just to add, like with everything, once you get to the point of not thinking too hard about it, washables are easy peasy. To begin with they are something to think about, but then, disposables on a newborn I had to relearn with my second baby!
I read that, including laudering etc, you can buy washables for about £500, and to get a baby from birth to potty-trained costs about £1,200.
With DD1 I used Kushies All-in-ones. They were good but I found that they lasted about an hour less than disposables, so I used disposables when out of the house. I looked into it before DD2, as the Kushies still had some wear left, but maybe not enough by themselves, and lots had changed. This time round I've got lots of fleece pockets (mostly Minki) and joined www.usednappies.co.uk, so I can get them, often nearly new, for about half price. They last so well that I use them out and about, and even took them to MILs when we stayed in the summer (and line drying was an option). They've leaked on DD2 less than disposables do. And I just add them to the normal kids wash, and run a dry bucket. As Im washing once a day, they never wait long to be washed. I did however wait til DD2 was about a month old before starting to use washables - couldnt stand to sluice the meconium off as I tried with Dd1! And when she is on antibiotics or has an upset tummy, I whimp out and go disposable - no medals needed here! I look at it this way - for every washable you use, that's one less you have to buy & bin. And if you just have a few, you never have to pop to Tescos at midnight coz you ran out of disposables - you can launder and tumble them in a couple of hours in an emergency.
My 1st size 1 pocket went on DD2 at 4 weeks. It is on her approx every 2-3 days. She's now 15 months, and it still fits, tho I guess not for much longer as the applix is getting tight! So as it cost £10 new, you can do the maths - about 200 wearings. I LOVE the patterns. White disposables are just sooooo boring after cars, diggers, camoflage, cows, sheep, etc!
Hope that helps!