you can send green stamp = 1$  (paper)                                       15-fev-2009
most countries need 2$
----------WorldWide----------------
http://www.atms.ch/rates/
-----------CANADA------------------
Stamp Increase Jan 12, 2009: http://www.canadapost.ca/rates/coming-e.asp
Jan 12 2009  From Canada to Canada   0-30 g... $0.54  30-50 g... $0.98
Jan 12 2009  From Canada to USA      0-30 g... $0.98  30-50 g... $1.18
Jan 12 2009  From Canada to DX       0-30 g... $1.65  30-50 g... $2.36


http://www.canadapost.ca/Personal/RatesPrices/Send/LettersDocuments.aspx?Lang=en&Style=0      click rates and prices
 
From Canada to Canada   0-30 g... $0.54        31-50 g... $0.98
From Canada to USA      0-30 g... $0.98        31-50 g... $1.18 Minimum: 140mm x 90mm x .18mm  Maximum: 245mm x 150mm x 5mm
From Canada to DX       0-30 g... $1.65        31-50 g... $2.36 Minimum: 140 x 90 x .18mm      Maximum: Length+Width+Depth cannot exceed 90 cm
(+ taxes if applicable)

To order stamps
http://www.canadapost.ca/personal/collecting/online_store/default-e.asp    by phone and online    canadian + USA and DX stamps
$0.72 US stamp catalog number 346501 (to order)
http://www.canadapost.ca/personal/offerings/supplementary_services_pers/can/collection-e.asp
Mail addressed to foreign destinations requiring total shipping charges of $5.00 or more (single item
or a cumulative purchase) and products ordered from and shipped directly by Canada Post to a foreign
destination, such as Philatelic and Retail products, are not subject to the GST

-------------USA--------------------
Postage rates go up May 11 2009:  $0.44 First ounce, $0.28 Postcard, $0.75 to Canada $0.79 to Mexico, All Other Countries  $0.98
price changes
-------------USA--------------------
Effective May 12, 2008

From USA to USA                http://pe.usps.gov/text/dmm300/ratesandfees.htm#wp1008795
First-Class Mail 
$0.42 First ounce     
$0.27 Postcard      

From USA to DX
http://pe.usps.gov/cpim/ftp/pubs/pub51/pub51.pdf
Table 4: Letter-post
Price Tables
May 12, 2008
Table 4a: First-Class Mail International — Letters

Weight Not
Over (oz.)1         Price Groups2

                 1     2    3,4,5  6,7,8,9
1.0            $0.72  $0.72 $0.94  $0.94
2.0             0.96   1.27  1.74   1.69
3.0             1.20   1.82  2.54   2.44
3.5             1.44   2.37  3.34   3.19

1. Maximum weight limit: 3.5 ounces to all destination
countries.
2. Price Groups: 1 is for Canada; 2 is for Mexico; for price
groups 3–9, see the “First-Class & M-Bag Price Group”
column in the Country Listing.


Table 4b: First-Class Mail International — Large Envelopes (Flats)

Weight Not
Over (oz.)1         Price Groups2

                1     2   3,4,5  6,7,8,9
1.0           $0.98 $0.98 $1.20 $1.20
2.0            1.22  1.53  2.00  1.95
3.0            1.46  2.08  2.80  2.70
4.0            1.70  2.63  3.60  3.45
5.0            1.94  3.18  4.40  4.20
6.0            2.18  3.73  5.20  4.95
7.0            2.42  4.28  6.00  5.70
8.0            2.66  4.83  6.80  6.45
12.0           3.61  6.33  8.45  8.05
16.0           4.56  7.83 10.10  9.65
20.0           5.51  9.33 11.75 11.25
24.0           6.46 10.83 13.40 12.85
28.0           7.41 12.33 15.05 14.45
32.0           8.36 13.83 16.70 16.05
36.0           9.31 15.33 18.35 17.65
40.0          10.26 16.83 20.00 19.25
44.0          11.21 18.33 21.65 20.85
48.0          12.16 19.83 23.30 22.45
52.0          13.11 21.33 24.95 24.05
56.0          14.06 22.83 26.60 25.65
60.0          15.01 24.33 28.25 27.25
64.0          15.96 25.83 29.90 28.85

1. Maximum weight limit: 4 pounds (i.e., 64 ounces) to all
destination countries.

2. Price Groups: 1 is for Canada; 2 is for Mexico; for price groups
3–9, see the “First-Class & M-Bag Price Group” column in the
Country Listing.
--
Table 5: Postcards and Postal Cards

Destination Country Postage Price
Canada and Mexico   $0.72
All Other Countries  0.94

                                    Send update to VE2PIJ