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Don't bother with bear barrels if it's just you or you +1. just put your food in a dry-sac (it will help keep the food and it's smells separate from your pack, also a must if you are canoeing), then at the end of the day hang it in a tree.
I bring a little pulley (can buy them at a hardware store for 2$) so that the rope isn't ripping up the bark of the tree, it also makes hauling the food up a breeze.