Need more clothing description?

I'd been reading through comments on a few stories, and noticed a few of the commenters requested more detailed descriptions of what people were wearing. Most of the time, I only describe what someone is wearing, if it feels like it's important to the story. Now I'm starting to wonder if maybe I should be more descriptive about things like that. Does anyone have any thoughts about how much detail should go into describing what someone is wearing, how much detail would be needed, and when more details would be helpful in telling a story? This isn't something I really thought about before, so I'm feeling a bit lost.