ditto on the 6-gallon Wal-Mart plastic gas cans being convenient and cost-effective; and I think I even saw those at the Sam's Club (if you're a member) for a dollar or two less than at Wal-Mart.

I have been looking for (new) Metal Jerry Cans, and those seem to be getting really hard to find. I had ordered some from the Garrett-Wade web site about a month ago, only to be sent a notice from them that they had sold out, and would not have any more. Round metal gas cans seem to be plentiful, but the "Rectangle shaped" (what I would consider the classic design)Jerry Cans seem to be going away.
It seems I recall seeing a reference to a "California EPA standard" or something along that line; so I wonder if the Jerry Cans are being legislated out of existence for some reason?