On the first day most of the travellers to any new city or country do not know the original prices and they end up being over charged. So here i warn you that this might happen to you as well. Be careful and do not pay extra.
Unique Suggestions: Confirm the prices from different places before buying anything especially if u are a backpacker and its your first day.
Just to tell you that a bottle of Sprite of Coka Cola costs 30 pesos.