Assuming you've got all the bits and pieces (wraps, wet bag etc) the cheapest way forward would be terry squares - you can get nice coloured ones made by Bright Bots - Nest Shop sold individual colours last I looked, or they come in packs of 6 assorted girl or boy colours. But even white ones are nice with a cool wrap over the top. Blueberry Coveralls are supposedly great (mine arrived in the post today
![Yay fluffy post! :mail:](./images/smilies/mail.gif)
) and they have lots of nice prints.