Any active home eventually results in some damaged drywall. Nail and screw holes, banged up paint jobs, even cavitiy-ish gapes from errant doorknobs, tools, and other sharpies.
Thankfully, it's an easy(ish) fix, and HandymanHomeRepair has got a perfect how-to for getting the job done.
"Sheets of drywall are generally quite strong, but they are only made out of gypsum plaster that has been pressed between two sheets of thick paper. The thing that ensures rigidity is the kiln drying process. The basic construction of the drywall allows for it to be inexpensive as well as quite easy to use. On the downside however, drywall is also capable of becoming damaged relatively easily."