For me, weather is the biggest impediment to biking. I generally won't ride in snow, sleet, ice, heavy rain and extreme heat (over 100 F). Fortunately, the weather is pretty fair and mild in NC, so I usually miss only 1-2 days a week at most due to weather and sometimes none at all. Occasionally I'll need my truck at work due to a meeting, doctor's appointment, etc. I take advantage of my driving days to restock supplies in my office (food, clothes, towels, etc.) and run errands.