I couldn't drink the exact same tea at all hours for weeks, but I do have a fairly predictable tea routine that doesn't change much:
I like to start out the day with a bowl of matcha (time-permitting), of which I've been sticking to one type lately, and then I drink a few pots of sencha in the afternoon, of which I only have two different kinds to choose from. At work, it's a tea surprise from samples, if any; lately I've been drinking water now that the weather is warm again. When I come home, I crave an oolong tea, usually a Wuyi, but I'm currently loving on Miyazaki Baisen from Yuuki-Cha which is also fairly roasted.
I usually break my cycle on the weekends when I'm going out or have someone to drink tea with. That's when the blacks, herbals, or Korean greens may make an appearance. Free time means more time for tea.
Today I'm still working on my okuyutaka sencha, which is pretty much my daily sencha pick.