Thought I'd pass this idea along in case nobody has posted it yet.

Headlight wiper blades are easily replaced without ordering them
1- Remove the wiper blade assembly (blade and frame) by pulling it away from its "triangular" bracket on the wiper arm.
2- Remove the rubber blade from the frame; there will be two steel strips that fit on either side of the rubber
3- Keep the steel strips
4- Get a new windshield wiper refill, or blade, at the flea market, discount store, or parts house MAKING SURE the refill also has 2 steel strips
5- Remove the steel strips from the new blade & DISCARD them
6- Using a steel strip from the headlight blade as a measuring guide, cut the new blade to fit
7- Slide the strips into the blade and put the blade in the wiper blade frame

It may help to spread the "claws" on either end of the headlight wiper frame to make it easier to get the old blade out
- Don't forget to squeeze the claws back together