Of Information you pick up during the day. Today I was looking at the customs site or something... anyway I was trying to find out what the policy on bring dog food across the border was. No real luck with that, but I did find out that if you buy a second hand mattress in the States, to bring it back you need documentation that it has been fumagated. Darn! And here I was planning all my over the border trips to collect second hand mattresses... But if they have to be fumigated, I might as well buy them here...
So have any of you picked up any info that you will absolutely never use?