The north side of the Irving parkbus stop under the blue line is disgusting! Pigeon feathers, bird crap, cigarette butts, and garbage everywhere. I usually walk to the next bus stop.
If your transfer card just expired and your out of cash to pay for a fare, then go to the South entrance on Pulaski & ask someone if you can go through the turnstile with them =-)
You should always double your travel time from this area to make sure you get to your destination on time. If it takes 20mins, allow 40. Train timing on the NW side is terrible.