Assuming you mean what place you can get a document notarized ... post office, bank, most law firms will do it for a small charge (possibly free), real estate office, phone book advertiser. If you mean where on the document, it is below the signature (which the notary is in essence saying is really you). You should not sign your document until you are in front of the notary. He/she will look at your i.d. and then watch you sign it.
Ask also in a Canadian post office.
You would have to check your local post office to find out if you can get a mail redirect from a physical Canadian address to Australia. You can ask them if they can do this for stores that will only post within Canada.
Post office.Postal service.
Oh, dude, can a Canadian resident rent a US Post Office Box? Well, technically, yes, they can, but like, there are some rules and regulations they gotta follow. It's not like they can just waltz in and be like, "Hey, give me that PO box, eh?" They need to provide valid ID and proof of address in the US, so it's not exactly a walk in the park, you know what I mean?
Post Offices
FPO = Fleet post office for Navy personel. Apo = Army post office for Army personel
Main Post office (Head Post Office) to Main Post Office (Head Post Office)
Almost any stamp dealer would have some Canadian stamps to sell. Some specialize in Canada and maintain a large stock. You can buy mint stamps from the Canadian post office via the Internet if you have a credit card.
Postal service
The plural is Post Offices
Go to the post office.