cloth nappies

They have a whole cloth diapering section at Boots, which is one of the major drugstore chains here. It's so cool I have to take a picture and share it with you.

I bought one of these all-in-one diapers and it's pretty much exactly like my beloved Bumkins--and at 7 pounds it was actually a little cheaper than most places are selling Bumkins for these days.

And they sell these rice paper liners, which I have always had to buy online at home. They make getting poop out of a cloth diapers a snap.

Also, not pictured here were boosters (rectangular liners which boost the absorbancy of cloth diapers), many of us use gdiapers for this purpose, though the gdiapers are much more expensive. The boosters aren't flushable, but I suspect you could compost them.
And also, completely corn based diapers, compostable, though we throw them away because we are living in an apartment. I think it's so great that you can just walk into the drug store and get these, though admittedly some of the smaller ones don't stock these items.