Can someone suggest a good place to find shipping boxes in Canada?

[carguy44]

I have some oddball sized items that I can't find boxes for. Checked with places like Staples,  but either can't find boxes or don't need to buy a bundle.

[heidilynn0_3]

I have open permission to raid the storage area at 3 grocery stores.

[femmefan1946]

Cheswick (which is staples online) and ULine - both are good sources. 

But think outside the box-- literally-- look for B-flute, which is one sided cardboard. It comes in big rolls. I found the most useful kind to be self sealing, although I still used extra tape. I'm a belt and suspenders kind of girl.

The package ends up looking like a pizza pocket/calzone/ cornish pasty/ jamaican patty - depending on your ethnicity.