I always carry voile ski straps. Not only are they great to strap skis together but they are also an integral part of my repair kit.
Video explains a few different uses for them. Here are a few ways I’ve used them:
-Strapping skis together
-Repairing a ski boot in a pinch
-Strapping a crampon to a boot
-Come in different lengths and thicknesses
-Act as a cross between a zip tie and duct tape