What you do in the first ten minutes after waking shapes the day more than most people expect, and Ayurveda is unusually specific about it. Dinacharya, the daily routine, begins before anything else does.
The classical instruction is to rise during Brahma muhurta, the period roughly an hour and a half before sunrise. The reasoning is that these hours fall in the Vata period of the night, which is light, clear and mobile — qualities that suit waking, study and meditation. Rising later, into the Kapha period after six, is why mornings can feel heavy however long you slept.
Then, in order: empty the bladder and bowel, scrape the tongue, rinse the mouth, and drink warm water. Tongue scraping is the step most often skipped and the one most worth keeping. The coating that forms overnight is described as ama, the residue of incomplete digestion, and removing it rather than swallowing it is the entire point. A copper or steel scraper, drawn from back to front a few times, takes fifteen seconds.
Warm water on an empty stomach follows, ideally sitting rather than standing. Cold water at this hour is specifically discouraged — the digestive fire is being kindled, and cold works against it.
None of this requires equipment or much time. What it requires is order and consistency, which is precisely what makes it difficult. If you adopt one element, make it the tongue scraper; it is the smallest change with the most immediate feedback.