Every one of my characters has developed their own quirks. My current character collects clothes. He has every kind, and every day after work he takes off his armor and puts on some clothes. And like some people whom I will not mention here, if he doesn't like what he's wearing, he casually casts it off and puts on something else. He's also developed a preference for a Daedric sword, which is not as powerful as some swords I've seen but he likes it, so, that's the only sword he carries.
Oh, also, he is the illegitimate love child of Ulfric Stormcloak and Leggete Rikke, which made for some uncomfortable conversation, and a lot of staring on his part, from Ulfric to Rikke, and back to Ulfric, and back to Rikke, when the Stormcloaks overtook Castle Dour.