Well.. I didn't do it today, I actually did it on Wednesday, but I still did it!!
I tinted my cabin windows!
The original acrylic has faded, but is still in ok condition, so....
Not a difficult job, only slightly messy (dripping soapy water), and I'm very happy with the results.
Stbd side not done

Port side done

Big difference in glare - more obvious from inside the cabin compared to the pics. Looks much better from the outside too. Nice and dark.
Left is tinted, right is not.

Only a slight reduction in light transmission , but 99.5% of UV is blocked.