Oooh, that reminds me! I had and very much still use a GR8* nappy bag - it's both a satchel AND backpack! It folds out so you use it as a change mat whilst out, then fold it back up and a wet stuff pocket inside. Really works excellently with my pocket nappies for going out - just as easy as taking sposies, but you take them home to re-use them!
As for the microwave steriliser...I tried selling mine on eBay but it didn't sell! Might hold onto it until someone I know says they want one...