A practice that, at once, is an act of Christian discipleship, and an act of patriotism, and a way to save money? That's right! It's driving the speed limit on the Interstate. (See yesterday's post.)

Here's another suggestion. Never buy bottled water again.

Instead, go to a bike shop and buy a water bottle. Four bucks. A leak-proof top. An opening wide enough to insert ice cubes. Re-usable thousands of times. (How much would each use save you? How much is a bottle of water?)

Here's why this is an act of Christian discipleship: because it's an act of caring for creation. You would reduce the use of oil that would otherwise go to producing your throw-away water bottles (not to mention the pollution of that production process).

It's also an act of patriotism. Less oil used means less money going to oil producers who hate us.

It's also an act of economy. How much does each bottle of water cost? Money saved! That means more money to give away! Hey! Another Christian faith practice -- generosity!

(By the way, I'd suggest that you go to Bikes Unlimited to get your water bottle -- because there you can get a Bianchi water bottle. You know, of course, that Bianchi is the coolest bicycle brand in the world.)