I like espressos (especially mochas) but they take a bit of work to prepare a single cup. With drip brew, I can do very little and get unhealthy amounts of caffeination into my corpse. Also, I pour ungodly amounts of creamer into my coffee. That Mason jar is quite literally half coffee half creamer.
Aeropress my beloved. But I borrowed a friend’s tricolate once for a few months and that’s pretty easy too especially 2 to 3 drinkers.