That will depend on where in the world you are sending it from, which you have not specified. Your local post office will give you the most up to date rates, as they change sometimes.
A regular envelope cost $1.89 to send to Mexico.
It cost 98 cents today - July 27, 2010
How much is first class postage from US to Poland?
As of January 22, 2012 the rate is 45 cents. You could also buy the "forever" stamp which will never lose its value as a current stamp.
One must take the to-be mailed item to a post-office for its weight - it is the weight of an item that will determine the postage (or the amount of stamps to be placed). What does one do, if they have a scale and wishes to avoid going to the post office?
Address label, (or possibly a postage stamp).
As of May 2011 any postcard over 4.25"x6" and less than 6.13 x 11.5" is considered regular First Class and is $0.44
tree-fiddy
Same as a first class letter since it's larger than a standard postcard. So the postage will be 45 cents domestically, 85 cents to Canada and Mexico, and 1.05 dollars to the rest of world as of 2012.
August 2010 prices. Small Letters and postcards. First class .......- £0.41p - Royal Mail aims to deliver by the next day. Second class.. - £0.32p - Royal Mail aims to deliver within three days.
no. she kindly placed it in a box and mailed it back.
98 cents