Some garages will check it for free, and only charge if it needs re-setting. Tracking won't necessarily make the car pull to one side - the simplest thing is tyre pressures - check that and you might find the problem is solved. Also, front tyres having different tread patterns, or where one is more worn than the other, can also do this. Have a good look at your tyres and put the two that match best on the front. That'll cost you nothing but 15 minutes work - and might save you a few shillings! Cheers Jack