Power outage preparedness: Stock flashlights, batteries, portable power banks, and non-perishable supplies. Install sump pump battery backup if needed. Learn manual operations for garage doors. A $100-300 investment prevents thousands in spoiled food, frozen pipe damage, basement flooding, and dangerous emergency situations when the lights go out.

Automotive fluids and battery check: Inspect oil, coolant, brake fluid, and battery terminals in just 10 minutes. This simple check prevents engine failure ($3,000-7,000), overheating repairs ($1,500-3,000), brake failures, and being stranded in unsafe locations or extreme weather.

Spark plug inspection: Check and replace worn spark plugs to prevent misfires, fuel waste, and catalytic converter damage. A $15-150 plug set and one hour of work prevents being stranded, saves $300-800 annually in wasted gas, and avoids thousands in component damage from neglected ignition systems.