Okay, had my cheap laugh. Check to make sure tire pressure is equal on both sides.
Make sure bearings are good on both sides, and if your front wheels bolt on, make sure neither one is too tight/ dragging. Lift off ground, spin tires by hand.
Parked on flat level ground, place steering wheel in straight ahead position, and adjust tie rods, etc until wheels are straight ahead and parallel. Things like a tape measure, straightedge and string will help aid you in this.