You may not think you have much, but you brought a ~2,000-pound suitcase
Use what you must, seats, fuel, compass, radio, your maps
Emergency Equipment Preflight Briefing:
Brief passengers on all emergency equipment present and how to use it
Private Pilot - Emergency Equipment and Survival Gear Airman Certification Standards:
Objective: To determine the applicant exhibits satisfactory knowledge, risk management, and skills associated with emergency equipment, and survival gear appropriate to the airplane and environment encountered during flight
Note: See Appendix 3: Aircraft, Equipment, and Operational Requirements & Limitations for information related to this Task
Simulate ballistic parachute deployment procedures, if equipped
Conclusion:
According to the National Search and Rescue Plan, "The life expectancy of an injured survivor decreases as much as 80% during the first 24 hours, while the chances of survival of uninjured survivors rapidly diminish after the first 3 days"
An Air Force Review of 325 SAR missions conducted during a 23-month period revealed that "Time works against people who experience distress but are not on a flight plan, since 36 hours normally pass before family concern initiates an (alert)"
Consider the type of flying you are doing and think about investing in a Aviation Crash Kit [Amazon], just in case
Although not emergency equipment, pilots should consider wearing closed-toed shoes, long pants, sleeved shirts with conventional fabrics, and carrying a jacket or sweatshirt when appropriate - considering overnight temperatures - to protect the pilot in the event of a ditch