I love coffee, but it took me years to discover that as much as I rag on Starbucks aficionados about their love of burnt coffee... I really like extremely dark roasted coffee that's also as low on acid as I can get it. Bitter coffee I love and can drink black all day long, sour/high acid coffee has to have cream and sugar, as much as I can get in a cup without it being ridiculous.
In practical terms, what this means is that on weekends I drink my coffee black, because I get to choose what I brew, and on weekdays, when I drink free coffee at work all day, it's white and sweet.