Money & costs
The best cash currencies are US dollars, euros and Russian roubles, roughly in that order. Georgian lari can also be changed in Yerevan and border towns. Other currencies are hard to change except at a handful of major banks in Yerevan. There are moneychanging signs waving flags and rates at customers everywhere in Yerevan and around shukas in all major towns. Virtually any shop can change money legally, and many food stores and small goods vendors do. Scams seem to be rare, and transactions straightforward.
Travellers cheques are rare in Armenia and not recommended. Bring cash or an ATM or Visa card. Some local ATMs are linked to the Plus system and others to the Maestro system. There are cash machines in prominent locations around Yerevan, including half a dozen HSBC branches. You can withdraw money in US dollars from HSBC machines and sometimes from local bank ATMs as well. All other main cities and even some small towns have ATMs, though you may have to poke around to find one that matches your card. There are Western Union offices all over the country.
Visit www.arca.am/atmsearch.php-en to access a clickable search of every ATM in the country.