I almost always have a book or magazine on me or, failing that, my phone. I love being able to cram in two or three minutes of reading when I find a moment. These snatches usually occur while I am in transit - riding the metro, stuck in a slow elevator, on the longest escalator ever, etc. They also happen when I'm waiting - for my lunch to reheat in the microwave, when I'm meeting someone, waiting for some sort of service, etc. It's not a ton of time, but it's the perfect amount to catch up on something.
These minutes don't allow for immersive reading, but sometimes they're the best I can manage. The brief reading lulls also help me get through reading slumps, when nothing seems to be hitting the spot. I'd rather get at least a few pages of reading done than sit around waiting for the mood to strike.
Some reading is better than no reading in my book.