This is a good idea to do on a regular basis. Over even short periods of time they can get smudged with fingerprints or covered with dust.
Wait long enough and it can really cloud what we’re trying to see.
Sometimes though we don’t do this with other things we’re trying to work on or focus on:
(ie, learning Spanish, updating a website, or even just going for a run.)
So then, what do we need to clean or clear away to make sure we’re looking at the right stuff?