I got the strider plus nappy bag free with the pram and it is awesome!!!
especially since we use cloth, u can fit so many more nappies into it!
i carry in the one bag, my phone, purse,diabetes kit, keys, 4-5 cloth nappies, a couple of sposies, my wetbag, a formula dipenser, a big jar of moogoo and a change of clothes!! and theres room for more too. hepas of pockets for things and comes with a few clip on bags too, has 2 thermo pockets at each end.
its not the most attractive of bags but its so good