Inspect the kit and rotate season specific gear every quarter. Replace anything that needs replacing- like meds in the summer, most of them don't like high heat. And the candle is easy- look at the NuWicks, and store the wicks in a little baggie that you tape to the lid. Or find small oil lamp and carry a small bottle of fuel, or a small alcohol stove.

At least that's how I do it- my annual low is usually somewheres between -30 and -40, and the annual high is right around the hundred degree mark. If your weather is worse... well, the theory should be sound.