I looove Subway's breakfast sandwiches. My normal order is a 6" flatbread, sausage, egg and cheese with onions, green peppers, and chipotle sauce. It's incredible.
The sandwich itself is $3.50, and their coffee is something like $1.20. I can't justify paying $5 for a breakfast so I go coffee-less on mornings I stop at Subway – but right now they're running a special combo that includes the coffee and the sandwich for only $3. That's cheaper than buying the sandwich alone! The combo includes every 6" breakfast sandwich except the sausage one, so I have to switch things up and order bacon instead.
The last time I was there, there was a guy that ordered the same sandwich as me, but when asked if he wanted the combo he said "no thanks." I almost stopped filling my coffee to explain things to him, but didn't. I paid $3.17 he paid $3.69.