Originally Posted by 79pmooney

That doesn't have to be a big deal. On a tubed tires, a dollar bill will work just fine as a boot you get you home. Then glue on a patch of sturdy fabric. (Real sailcloth from a sailmaker is excellent. Ask for fabric for small dinghy sails.) Glue an oversized patch on with contractor's contact cement. Replace tire at the usual time (ie your definition of "dead").

I make it a point to always have at least 5 bills (of any domination) in my cycling wallet. It is impressive how big a casing rip can be ridden with enough bills and all I've used have survived, then spent. (One trick, seat the bill ends under the beads on both sides to resist pressure and bulging out the cut.)