The day of a reading, avoid watching anything that is stylistic, or saturated with imagery for more than half an hour.
Included in the "stylistic" and "saturated with imagery" categories are videogames, animated shows, or even binge-watching a reality show on Netflix.
This primarily concerns people who rely on their clairvoyance for readings. And hey, maybe it doesn't affect you, but I have found that for myself a heavy dose of any media that's stylistic means that those images get stuck in my third eye. Which then requires an extensive clearing.
Energy wasted, anxiety heightened. If I know I'm doing a client reading, I save the videogames or bingewatching for afterwards.