Probably Lats as that is the national currency. However, you probably dont need to take any cash with you because there are many cash points and most shops accept all kinds of bank cards.
Yes, the euro is the official currency of Latvia and it is legal tender everywhere in the country.
The euro.
Latvian lats [LVL]
Lats . (Ls) (Lati)
Yes, it is Lats(LVL)
The currency is called 'Lats'
As of the 1st of January 2014, the Euro is the currency of Latvia, so you can use it there now.
The best currency to take is Egyptian Pounds. These should be readily available at your local foreign exchange agency.
The Lat, international currency code LVL. 1 lat= 100 santimes
I'd say Euro's.
The best currency to take to Malaysia other than the Malaysian Ringgit is the US Dollar. However, note that all business in Malaysia is conducted in Malaysian Ringgit by law.
Kuwait has the best currency