Anyone into Maccha/Matcha at all? A lot of what is sold fraudulently under that name is just powdered sencha, which is properly called konacha, but the real deal is extremely powerful and naturally sweet. It's quite expensive as well. I've had Gyokuro a few times as well, which is the same kind of tea used to make matcha, but not powdered, which means your not actually ingesting much of the tea leaves, and I thought it was a little bit weaker, but still good stuff. I can't stomach cheap green tea, especially on an empty stomach, in which case it makes me puke on account of the acidity, but shade grown tea has none of the acidity and way more theanine and caffeine.
I currently have some bagged green tea from Costco that is supposed to be regular sencha with a bit of matcha added in, but on the ingredient list, in brackets beside matcha, it says powdered sencha so I guess it's fake, but it is a lot sweeter and I can stomach it. Fairly powerful as well.
I used to drink upwards of twenty cups of coffee a day, but for some reason which is at least consciously unbeknownst to me, I suddenly stopped cold perky a few years ago. I started drinking a lot of cola and stuff, so I guess that's why it didn't effect me so much, but the amount of caffeine I was ingesting via cola came nowhere near the amount I got from coffee for over ten years, everyday. I started up a few times since then, but always stopped after a month or two. It's probably good for my heart or something to not drink THAT much coffee, but I do miss it and am currently mulling over whether to start again. I like nearly any kind of coffee, but my favourite is this stuff from Portugal, can't recall the name right now, brewed in a moka pot. If a moka pot is not available, just a regular cone style filter is probably my second favourite method of preparation. I like to pour the near boiling water over the coffee until it fills the cone right to the top, then let it drain out completely, then slowly and carefully pour more water over the side of the filter, washing away all the coffee, and more importantly the oils, that have been deposited there.
One time, an ex-girlfriend brought me back a bag of Americano beans from Chiapas that were so lightly roasted, they almost looked like peanuts or something. It was caffeine heaven.