Looks like Amazon is having a different size wiper blade on sale every day
so far.
As of 10:32am PST Amazon has 22" Anco 3122 Wiper Blades for $2.87 FSSS
Link: http://www.amazon.com/Anco-31-3122-Wiper-Blade/dp/B0009IK5XA/re
Yes, these are cheap blades. Someone said they are normally about $5 at
Walmart. Either way, I had picked up a couple 18" earlier in the week.