Currency Of Thailand
Exchange rates fluctuate a lot in Thailand I've seen the US dollar at 50 baht to the dollar before and now it's only 30 baht, which makes retirees who call Thailand home worse off now than they were before, though the currency exchange rate is still fairly good for other countries like Australia who's exchange rate now equals 32 baht to the dollar making it great for Australians who want to travel to Thailand.
Types of Currency In Thailand
Copper coins are for 25 Satang and 50 Satang and are really annoying to carry around because they are basically worthless these days.
Silver coins in denominations of 1, 2, 5, 10 can accumulate quickly in your pocket fattening up your wallet and making it impossible to use. Try to use them as much as you can when your in Thailand or you'll be carrying more weight than needed.
Thailand currency bills are in denominations of 10, 20, 50, 100, 500, 1000 notes. The notes are all useful though using 1000 baht bills will get you frowns by most shop keepers who rarely carry enough change to split every 1000 baht banknote. 7 eleven is a great place to break 1000 baht bills because they always have a lot of change so if you get stuck know that 7 eleven and even banks can help you.
Instead of carrying around a lot of currency in your pocket, try if you can to open a Thai Bank account. You can get issued an ATM card or Visa Debit Card on the spot and is harder for you to get robbed in Thailand for all of the money you have on you.
If your thinking of going to Thailand and want an idea of the exchange rate and what Thai currency is like to use in terms of how far your money can get you think about the general items below and how much they cost. 1000 baht sounds like a lot and really it isn't but it does go a long way in Thailand.
Tipping is not something Thai people do unless they are at a nightclub and couldn't be bothered picking up all the change that the waiters hand them, though if you do tip big let's say 100-200 baht in the begginning of your meal or at a club, then expect exceptional service, don't tip at the end unless you are a regular or you won't get good service at all.