I used a padded envelope just like they use here. Sb.com pays the same shipping as I do and there's no reason for shipping to be that much to canada.
Even here in the US they advertise new lower shipping for lightweight items but for a little set of jolees stickers it's still $2.99 for shipping which is pretty close to double the actual cost of $1.64. But it's better than the little over 4 times the cost of sctual shipping they were charging. There's got to be a better system for determining postage than the way they are doing it now?