I've never used it, but I think this is what you're looking for.
Another tip is to ship it to your place of employment, if they'll allow it. Being in an office, our company doesn't mind personal deliveries.
My company doesn't really allow it, since our main form of communication is mail and comes in large volume.
I have a Canada Post just around the corner and I use Flex from most Canadian retailers + Amazon. Pretty damn handy, I never miss deliveries and get emailed when stuff arrives.