Not really,perhaps Aerogard as it seems to work better than some of the Thai personal repelants. And Sun block as I know I can trust Australian standards.
Look for a printable conversion chart on the net,from dollars to Baht and Baht to dollars and carry it with you then you will know how much you are paying/spending with just a glance at the chart.
OANDA, The Currency Site: Foreign Exchange Services and Trading does one that goes up to $900 and Baht 9000,it is small enough to go in a wallet or purse and Tracey laninates ours.
You stick the chart s back to back and can easily convert back and forth within the dollar or Baht ammount you spend,really good for checking the ammount you should get when exchanging money.
Den