Paying my electric bill.
Type in expiration date of debit card as always.
Wait, November 2013 is soon. Shit. Do I need to ask my bank to send me another one? Do they send it automatically? Procedural knowledge that is required at a frequency of less than once/week seems to fall out of my brain easily.

Wait, what's this pile of mail over here. What's this. Oh! Replacement debit card. Score.