Introduce the 'Don't Skip the Grit' Rule

What happens here

The video introduces the fundamental rule for sanding: 'don't skip the grit.' This rule dictates that you should not skip more than one grit size when progressing through sanding steps. For instance, if you are currently sanding with 120 grit sandpaper, your next appropriate grit size would be 180. Skipping directly to a much finer grit like 220 or 320 is cautioned against.

Goal: Learn the basic principle of sanding grit progression.