I have soon realized that in the hussle & bussle of shopping, buying bits & pieces in Bali you can often get caugh out thinking you got a cheap buy to later realise you got majorley or minorley ripped off.
Anywho to over come this i made up little Money Conversion Cards for 7000-8000rp. They are 4cm x 7cm each. You laminate them, cut them out, punch a hole in the corner then put them on a small key ring. And wallah an instand purse or pocket sized calculator if you will. Trust me hey they look better than they sound so if you wanna see one email me & ill send you a picture. Just another way to make life that much more easier whilst holidaying in Paradise!