I thought this information would be useful to many on this forum.
The Bank of Bangkok Silom branch will let any visitor open a savings account by just producing a photo copy of your passport. I opened one three trips ago. They gave me a passbook and an ATM card to withdraw money from the account. The ATM card works anywhere in the world. You can use it whilst in Thailand to pay restaurant and shopping bills and any other bills from shops that display the visa sign. Better than carrying too much cash.
I found that bringing dollars cash with me on a visit and depositing it in the account on the first day. (they change it to Baht) is the best and safest way. Cash can be withdrawn anywhere day and night as you need it.
If you have a bf and give him an allowance each month, you can set up a standing order. It's so much cheaper than transfers from USA and European rip off banks and defiantly cheaper than Western Union. You can also transfer any currency to the account at any time during your absence from Thailand and take advantage of good exchange rates when your currency peaks.
I wonder how many of you guys knew about this. It would be interesting to know how you take care of your money whist in Thailand.