Screens have been on our minds lately. Our apartment has very old ones that allow tiny biting bugs to sneak in and torment us. We've been procrastinating about doing something about it because we once had to replace a screen door after our cat decided to destroy the screen, and we haven't figured out a way around that. To complicate matters further, we also have a blind dog who runs into things. This Pet Screen Kit seems to be the solution (see photo below the jump -- not our dog but a good demonstration).
The flexible, vinyl-coated polyester screening is supposedly tough enough to resist tearing by dog or cat claws, and is described as seven times stronger than typical insect screening. Available here. (They also sell a Flexible Screening Kit, although we don't see much of a difference between the two.)