ElDiabloConCaca,
Thank you for your reply! I was using a lot of hand sanitizer and lotions, so maybe that's my culprit. I actually had thought of that possibility, but then I thought, "Nah, that wouldn't make that much of an impact." Maybe I was wrong. Ever since this keyboard replacement, I've been extra careful: I don't use lotions or hand sanitizers before using my iBook, and I always wash my hands before that first keystroke. I want this keyboard to last!
I do have one question, though: You mentioned only cleaning the keyboard with a "damp cloth." What about Nice 'n' Clean Anti-Static cleaning wipes? I've been using that product for years - on my LCD screen and my keyboard as well as the exterior of my laptop. This product is specifically designed to clean laptop screens and keyboards, so I'm assuming it's safe. What are your thoughts on this? An anti-static cloth dampened with water just doesn't cut it. I've used that before and it doesn't clean the keyboard properly nor get all the streaks off the screen.