So today I felt brave enough to do some experimenting, beginning with setting my camera's custom white balance by taking a photo of some white copy paper. From there, it was challenge enough for me to run though the available white balance options, both indoors and out, the results of which you'll see in the mosaic below.
After comparing all the photos, here's the results. The photos on the left were taken using the auto white balance; both on the right taken with custom. In both cases, the ones taken with the custom white balance settings were truest to what I actually saw in each setting. The indoor photos (top row) were taken in natural light on a pale green surface; the outdoor photos (bottom row) were taken about 2pm on a cloudy day.
Canon EOS Rebel T3i). I also know that those settings are situation-specific, ie. affected by the time of day, location, lighting etc., and custom will need to be re-tweaked each time I want to use it. I'm glad to know all that, though I think that's enough for me to mull over for now.
Linking up with The Quilt Photography Workshop. And I'll be reading all the other link-ups with interest!