How do I send small packages from Canada to U.S.A?

so i got a usa stamp , from the usa in the mail. and im wondering if i can use that usa stamp and send it from where i live ( Canada ) to usa. so basically if i can use a stamp from usa, USE it , and use it to send it from Canada to usa

i'm wanting to send a letter to my husband from USA to Canada. would i need more then 1 stamp?please and thank you so much!!

How do I send text messages from Canada to USA free? I have a cell phone but I believe that it will cost money to send text from country to country.. is there any possibilities I can send free text maybe from PC?

I need to send a few things to Germany. USPS doesn't offer shipping with ship anymore. Is their still any chance to send my packages via ship? Or what else is a cheap way for a package weighting about 50 Pounts. Thanks in Advance!

I am going to be travelling for a couple of months and won't get paid until I am in transit. I am curious what the best way to send money is from the USA to my roomate in Canada (other than online banking, as I will be carrying travellers cheques and...

i have a friend in usa that i want to help out, but were unable to transfer from bank to bank, so i was trying to figure out other ways i could send him money, i looked at prepaid cards but most only alow you to reload them from usa banks certain locations...

I have a small package that i need to sent to canada from the US and want to know if I send it through USPS and pay for the C.O.D. will Canada Post collect the money and send it to me?

I have a pay as you go cell phone with Telus in Canada. I can send 2500 text messages a month. I'm going to the states on Friday, will it cost me to send and receive text messages from my phone to Canada? If so, how much will each text cost me?