Let the Weather Channel choose your route.

In lots of places (especially flat places), wind direction is the No. 1 factor in deciding which roads to ride.

Ed was reminded of this during a recent week in north-central Florida, where there are no terrain challenges but the wind is usually blowing steadily.

The idea is to ride a route that takes you into the wind on the way out. You're feeling fresh and strong starting rides, so pushing into the invisible wall isn't a big physical or mental strain.

It gets a lot tougher, though, if you sail through the first half of a ride with the gusts at your back, then have to battle a headwind with waning energy.

Wind direction is especially important as winter weather sets in -- often accompanied by brisk breezes.

Starting into a cold wind, you're dry and comfortable. The airflow keeps you from overheating even though you're putting out effort. When you turn back, you have a helping hand pushing you home.

Starting with the wind, you'll overheat as you pedal in what's effectively still air. You'll sweat and get damp. Then when you reverse course, the headwind will penetrate and freeze you.

Tip: If you're away from a TV or PC (go to www.weather.com and enter your town or zip code), check flags and smoking chimneys to get a pre-ride read on wind direction. Down South, Spanish moss is a handy indicator.