I like to go outside about two hours before dark, and take a custom WB in open shade, off of a white towel. Set and save that. Try it in YOUR favorite shooting area, especially if you shoot in say...a park...or a cul-de-sac..or a big back yard....just SEE what it does on your photos. I first did this when I lived right next to a small hilltop of about 400 acres of green, Douglas fir trees, where the sun disappeared behind the hill about 4 hours before normal sunset anywhere else within 20 miles. This is a type of local area white balancing. I would re-set this about every two weeks or so.
When I used to use the 70-200 VR and the 80-400 VR lenses all the time, I would also take a custom WB shot off of white clouds in the sky. Zoom in to maximum telephoto, throw the clouds wayyy out of focus, and shoot that as a custom WB. Works surprisingly well to balance to the light coming from the sky.
Later in the day, I sometimes just start at 6,500 Kelvin, then go to 6,800, then 7,200 then 7,500 as the day fades.
I like a white towel or white washcloth as my WB target, easy to CARRY!!! If you take a Custom WB off of a pale blue oxford cloth dress shirt, you get a deliciously warm color effect, especially with the Fuji cameras.