Even if you just have a few hours free, you can jump on your bike and have an adventure. There's a small residential road that I had never explored, but on the maps it looked like it continued on for a while.
I had a free afternoon with just about three hours until sundown, so I took a bike ride down the mystery road to see where it would go. It turns out this particular section of Olive street intersects with El Camino Real, the Royal Highway of "New Spain."
I ended up in the historical center of San Gabriel. The road went almost in a straight line to one of the early California missions. People from the San Gabriel Mission went on to found the city of Los Angeles, so this bike ride took me to some of the roots of LA's history.
I even got to see one of the first and oldest grape vines in southern California, and later on I tasted some California wine to celebrate.
If your a biking newbie, this just reinforces the point: It doesn't matter how far you want to ride or how much time you have. Just get on your bike and explore. You'll run into something interesting you've never seen before, or discover a new bike route to places you've already been.