anyone that uses dyneema just remember that there is no stretch whatsoever in dyneema, which may or may not be beneficial depending on task, guess everyone knows that already anyway so no doubt a useless addition to this thread.
Actually I think it's a good point, and well worth pointing out. The lack of stretch is one reason why I rarely use dyneema for anything that's going to get pulled tight. If you rig dyneema tight, it can put *huge* loads on the supports. See the pic below...
Back on topic, I use a mix of bank cord, decent paracord and natural cordage. If there is a risk that I'll forget it or not be able to retrieve it, I try to use something that will degrade naturally without endangering wildlife.