Just go to the grocery store and buy a box of black tea or green tea (100 tea bags for about $3). Take them home, boil a cup of water, put one tea bag in the water, let it steep for about 2-3 minutes depending on how strong you want it, then drink.
Or, if you want ICED TEA - take 4 of those tea bags and boil them in 2 cups of water, add l/2 cup to 1 cup of sugar depending on how sweet you like it. As soon as it comes to a boil, remove from heat, let it steep 5-10 minutes, get a l/2 gallon plastic or glass drink container, use funnel or pour it in and add water to the top. Wa-La! the best iced tea you'll taste! Add a slice of lemon to your drink and you will be healthy forever if you drink it every day! Like me, I'm 91.