A post-it note plastered to my mirror from the BF.
I couldn't remember my bike combination yesterday. (Yes, I have a bike because I'm getting into shape.) He bought a lock for me about a month ago and I never wrote the combo down. (He told me once when he first bought it and I've never had to lock it up.) Yesterday when I went for a ride, he tells me to lock it up if I go in the Metroparks to run.
As I'm jumping on my bike....
Me: I don't know the combination.
BF: Didn't you write it down?
Me: No, didn't you?
BF: No, I told you what it was when I got it.
Me: Well, I don't remember that. It was forever ago and you just told me the code once. I need more repetition than that to remember some random 4 digit code.
This was stuck to my mirror so I wouldn't forget and probably not blame him for not telling me.