There are literally thousands of useful programs and utilities available for download off the internet. Many are full commercial software packages for which you pay retail. Some, like printer drivers, are provided free of charge from a manufacturer in support of one of their products.
A good number of the programs available off the internet fall under the category of shareware and freeware. Shareware is software you can download and use for free on a temporary basis. If you like it, you can pay a small fee to continue using it. Freeware is software distributed without license fees that anyone can use for free.
You can never have enough at your disposal--just ask our designers.