How do I get to Royal Grand Palace from Ibis Siam hotel, Bangkok?

ive lived in Thailand for four years now,have a house in Esan,took my parents to see the Royal Grand Palace and Emerald Buddha last year,easy way to get there is by Taxi,make sure its a "Taxi Meter".their very cheap.ask the hotel to phone you one,or your hotel might even have cutomer service taxi to take you there,depending how upmarket your hotel is..when you get there dont get one of the guides,see it at your leisure,Enjoy