Pet hair in your home means extra cleaning. A dryer sheet to dust can help in many ways. Not just because it kicks the dust to the curb since it banishes static, but because it actually coats as it cleans (which is why we're not huge fans of it for laundry) for residual dust-fighting power.
When used on your baseboards it can not only help repel pet hair, but in general keep the things that get tracked in and out of our home off the walls and on the floor where it can be swept up. If you have a Swiffer or something like it, just attach the dryer sheet to the bottom of the mop head and run it along as frequently as your house seems to require the chore.
It can take a task that should be done once a week (or once a month) and turn it into something that's done every few months or even a few times a year. That definitely makes your life easier.