If you discover that you have a small dent on your car, on the paintwork, then you may not have to go to the expense and hassle of having to have it filled and resprayed. Depending on where the dent is and how bad it is, it may be able to be removed by a specialist company simply by pushing the dent out from behind or pulling it with a special tool. If the paint on the car has been scratched then this will not help with that but by removing the dent you will then only need a touch up or respray rather than having to have the panel filled.
Not all garages will offer this service, but before you go down the route of going to a main bodyshop to get the repair done, why not search paint-less dent removal companies near you and pop it to them first. If someone has opened their door into yours for example then they can often pop the dent out easily for a fraction of the cost of a respray. Ideally you want to avoid getting the car re-sprayed if at all possible as you may find that you then have problems with colour matching, overspray and if not done correctly, peeling paintwork years down the line.