Pack your books in small boxes, so as they can be very heavy to lift when in a large box. Never pack more than 30 pounds of books in a box. Fill in small spaces in each box with smaller paperbacks. Lay the books flat and alternate bindings to prevent damage and to keep stacks level in each box.
Record albums and CDs should be packed on end vertically, rather than placed flat and stacked. More information on move to canada here.
It is best to pack electronics in the original cartons. If you do not have one, use another carton box with the appropriate size. Wrap items in bubble wrap before putting it inside the box.
When packing a computer remember to have backup for all your files and programs. Put all your backup discs and floppy diskettes in safe container.