And don't forget to change the air every 1500 miles. All that rolling causes the air to fatique and will result in loss of firmness. Left unattended, the air will develope stress fractures.

On the serious note, One thing that I've not read anywhere (or I've forgotten that I read it) is to grab the rim like a steering wheel and press the axle against the ground. repeat all around the rim and flip it over and repeat again. It looks like it stress relieves the wheel laterially.

Good luck w your front!