There is really not much to buy. There are, however, 3 ATM's within crawling distance of each other in the financial district of Ao Thong Nai Pan Noi. Also in Ao Thong Nai Pan Noi you'll find a pharmacy which also sells second hand books. Don't expect much of it but when you have decided to stay one extra week in this little paradise, it might come in handy.
There are now two ATMs on the main street of Thong Nai Pan Yai.There are a couple of shops.lemon tree sells clothes and art work and indigo gecko clothes and gifts.