25.Lock your car:It is imperative to lock your car. But there can be occasions when your old car may have a problem with its lock. Do not worry about this aspect. Think about how interesting it could be if there was an external lock. It is an exhilarating idea to place a latch and then place the lock and the key. Be innovative to save some money and ensure more safety. In fact, this playboy is more concerned about external safety than the interior.