Icons on sale Oreilly's I run a 24 some prefer a bit of room to the side of the windshield and use the 23in.
Either way treating your eyes to a clean dry swept windshield is a joy for the sale price buy 1 get 1 free comes out to 12 bucks each and you have a spare to toss on in 6 months or so.

 

I realized the aero wipers don't work as well as the conventional wipers on the W210s. However, I like the look for the aero wipes especially the Trico NeoForm since it has a larger curve steel beam to give it a more even pressure.

 

Oreilly's has a deal on my favorite blade right now - the Rain-X Latitude. Essentially $5 off - or $16 instead of $21.