Sometimes it is really frustrating when a door does not close properly just because it has a loose screw. You can fix such minor issues yourself if you keep a screw-driver handy.
You can as well invest in the basic screw driver set available in the market. This set contains varying sizes of screw drivers that are useful in different situations. Once you have this set at home, you will discover so many uses for it that even you might have not thought of.
This set will also save you the fees charged by the technician in case you need his assistance.