The first two I realized I'd forgotten soon after I stepped out of my room and locked the door behind me. But since I'm prideful—okay, lazy—I thought I'd survive without them. I was right too, I didn't have a need for them yesterday.
The key I only realized I'd forgotten at the end of the day, when I was mere steps away from my room and fumbling through my pants pocket.
Had it been physically possible I would've kicked myself upside the head. Since it wasn't I settled with imagining it. It still hurt.
Good thing I watched "MacGyver" as a kid. Using a borrowed Mandarin Oriental keycard I was able to open my door in no time. That was a relief; I had already hatched elaborate back-up measures that would make Wile E. Coyote scratch his head.
[3:58 PM edit]
Yes, I realize I've practically told the whole world how to break into my room. I'm smart that way.