You know how the local parts house will change your wipers for free? You think it's also a coincidence that they hide the refills and cheap blades on the back shelves where you can't find them? $20 to $40 per blade, they'll change it out for free. They have to position themselves for revenue somehow. You think they want to change $4 inserts for free? $30 headlight bulbs. $150 batteries. Etc. The market you support is the market you get.
Four packs of insert refills (just the rubber part) for $8 on amazon. They fit great in the $16/pair cheapo beams I've been putting on our cars. At $2 an insert, all three of my cars can get new inserts annually for $14. (Two have rear wipers, but are short enough I can cut one rubber to do both.) Buy the inserts long and cut to length.
Amazon.com - Cheap 26" refills. $7.50 for four.
Amazon.com - Cheap refillable blades. Ends remove with a pick, pocketknife, small screwdriver. ~$15 a set.
Yeah, they don't last as long as the Toyota OEM. Sure, I'd rather be getting a few years out of Bosch Icons, but I'm done playing the game. I'm tired of funding our economy by blowing my budget on cheap-but-overpriced consumables.
This strategy makes it easy to keep universal spares on the shelf. Heck, keep a box of inserts in the trunk. Stocking stuffers! Time for annual inspection? Pop a few fresh ones on. Based on 48 posts of "can't buy refills and refillables anymore," this may be my pinnacle BITOG post. You're welcome BITOGers.