You will get many opinions (many previous threads) on this so just do what you think is best for you.

We just get cash as we need it from an ATM, usually a couple of hundred at a time, so there is no issue with "carrying a lot of cash" around...simple...have done it in evry country we have visited with ZERO issues. We have NEVER used a CC or travelers checks for anything outside the USA

Edited to add: the "never use a CC is a lie <img src="http://www.traveltalkonline.com/forums/images/graemlins/Sick.gif" alt="" /> Sorry...if we check out of a hotel, pay TS tax and car rental we use a CC. All other transactions are in cash.