I keep both the nano and micro cord around for various things.I don't use them for tarps and tents because the thin diameter is harder to work with.I have a hard time tying and untying knots in the then stuff. If you are a bike touring weight weenie, then sure, I would use those, very good quality rope. It will save some space and weight in the panniers.They are certainly worth experimenting with for certain tasks, I'm sure you will find a use. I believe they also make something called utility cord which is thicker than the micro or nano and ridiculously strong.