Originally Posted by becnal
With an emergency spoke, you don't need to get the cassette off.
+1 for Fiberfix. Even if its a drive side spoke you can fix it without taking the cassette off and head for the nearest bike shop. If you're going Expedition Touring I'd say take real spokes and a cassette tool as you might find it hard to get to a bike shop, but for regular touring go with Fiberfix.