I use the alpine butterfly bend for my compass lanyard and hammock extension webbing; the tautline hitch (or variant) on my guy lines; the constrictor knot for my cadence magnet and chainstay protector; and the highwayman's hitch occasionally for securing miscellaneous items. I secure my sleeping pad to my rack with a surgeon's knot, which is the reef knot with a double (or triple) overhand knot as the base knot. At some point I'll probably transition to the packer's knot for this last purpose.