The really pernicious part, at least for me, was how comfortable my contacts were and how easy it was to forget that I even had them, much less was wearing them. I would have sworn that it had been roughly a year since my last checkup, and I kept meaning to get around to ordering a new batch, but eh, out of sight, out of mind ...

I'll probably program reminders in my calendar for fresh contacts and regular checkups. Otherwise you'd probably be hearing this tale from me again in 2011.