Whether day-hiking or backpacking, I carry a small ditty bag with me at all times. It contains (from the bottom to the top): A length of "parachute" cord. (Length varies as I cut off a piece to use now and again). First-Aid kit. A square of pack towel. A small roll of 2", breatable athletic tape. A small Nalgene tube of Bag Balm. Lip Balm. A ziplok baggie of tiny bags of drugs (Tylenol, Benadryl, Imodium, Electrolyte tabs, Pepcid AC, etc.), Extra matches in ziplok, Petzel headlamp, and Blister treatment stuff. It weighs more than I like but has served me well, for the past 21 years, while leading hikes and hiking solo. I used to carry Purelle in there too but, since making a Titanium, multi-use ,super ultra lite, "pottery" Trowel, I now carry the Purelle in a silnylon bag with the PT, TP and handy wipes.
Silnylon Ditty Bag
Ditty Bag Contents