I also use LiveView when I’m using manual for critical focus, but only when I have a tripod like you said. Autofocus is absolutely necessary in some genres, but I’m using manual focus more and more these days for landscape work.
For anyone who does not have older lenses with aperture rings that give you live Depth of Field preview, there should be a DOF Preview button on your camera body. Here’s where you can find it on your camera: Depth of Field Preview Button.