A box of Kirkland Signature Reynolds ... or you can use it to keep your kid's sandwich fresh in their lunchbox. Aluminum foil is pretty versatile and it definitely won't go to waste.

Right there on the end of the box is a tab to lock the roll in place. How long has this little locking tab been there? I then looked at a generic brand of aluminum foil and it had one, too.

Yet, although aluminium foil is convenient for cooking or transporting a sandwich, it isn't a safe option for cooked food. Since foil can't adhere to itself, no matter how tight you wrap it there ...