An often overlooked area of websites is the text that is used to get information across to it's users. We are not only talking about the contact pages and ubiquitous about us pages, but also the small things on your site.
Changing a statement like: "Cheques should be made payable", into "Please make your cheque payable", can make a difference in stamping your personality on your site and make a big improvement to your customers experience.
As you might have discovered it's not always that easy to change some of the text that Drupal outputs, especially if it's coming from within a specific module and you don't know how to override that or there is no option in the admin interface.
String Overrides
The module is very simple to install and can save you a great deal of time and expense if you simple want to change a single word or phrase.
It is worth noting that this module makes use of the translate function. Most phrases that Drupal outputs should (if the module developer was doing their job correctly), be passed through the "t()" function. This allows them to be translated into other languages. If you are looking for something that will translate large sections of your site it is better to use the Locale module, since having a large number of overrides can become hard to manage.