I use one of these

when I want the occasional cup of coffee. I limit myself to no more than 3 a week.
I gave up coffee a few years ago for health reasons (It sucked, went thru withdraws for months), can't have a regular coffee maker in the house (even had to box up my beloved french press) because I'll drink the entire pot every time I use it.
With that thing, I make one cup at a time. It's perfect....and I think I paid 2 bucks for it. I just heat the water in this

, put some coffee in the above "sit on the cup thingie" and make a single cup of coffee. No muss, no fuss, takes about 1 minute from the time I start till I have my coffee.