Side Window Sun Protection

[oakview]

Summer's rapidly approaching and I'm looking for a good solution to protecting the vehicle interior from the sun. I have a 2012 Ford F-150 with a shell, already have a good windshield sun block, but need something for the side windows. Looked into tinting, but it's illegal here in SoCal. It seems the alternative are good blockers/screens, but I've yet to see anything on the 'Net that seems decent. Lotta cheap stuff out there and I want something that'll do the job and last a while - not into throw-away goods. The truck is parked a good deal of the time, so a complete block would be ideal.

Any ideas or suggestions?

[Railroad]

My F150 with an ARE Top is also parked most of the time and in addition
to a cheap sunshade for the inside windshield I tape cut sections of white
poster board to the inside glass (SuperCrew), it's not a big deal for me to
take it down as I usually know ahead of time if I'm going someplace. Even though I've tinted the front door glass I still put it up.