@Everyone
As Nutts has said, everybody has a valid point, but I noticed that a large portion (read: not all, but still) of the viewpoints presented so far are from our own personal experiences regardless of how objective we try to present our individual arguments (some see the need for detailed sheets, some don't because the RPs we're in have different requirements, standards, etc), so there isn't a right or wrong answer. [i]Just sharing what work best for each of us, and it may not work for everyone.[/i] Well, writing itself is a subjective thing, anyway. :) Not sure about others, but I feel that RPing is a good place for me to experiment other aspects of writing and try out new things that it's hard to achieve in solo-storytelling.

Addendum:
Coming back to the topic about whether attire description is important to describing character's appearance in CS, the way the character dresses themselves is how they carry themselves, which is part of their identity. In real life, who doesn't judge others based on first impression, which includes what they wear in the first meeting? Even in job interviews, it's the sad truth that society deems outward appearance is as important as the resume to increase the chance of getting hired. Again, I'll reiterate that one doesn't need to go into too much detail such as exact color, brand, cloth type, down to the seam of the clothing when describing the attire, just enough to bring out the personality and other hidden beliefs of the character, which are the more important stuff about the character.