Every few months, or years, emails with "great new advice" make the rounds.
The most recent to be bouncing around is the email describing the supposed, incredible pest control effects of dryer sheets.
Although the sheets do have uses that go beyond the dryer, according to further research by Snopes.com and WCVB-TV Boston, repelling bugs is not one of its strong points.
If you are looking to repel mosquitoes (one of the supposed attributes of the dryer sheets), you are best to stick with DEET or an alternative, such as those listed by the University of North Carolina. Or, if you have a significant infestation, to call a pest control professional.