This thread is great.
My only comment is that the dress code filters from the top down. If people in the President and VPs office dress in a business manner or a casual manner, the staff will follow.
I got my business attire education the first week I worked for Lockheed Martin. In super-conservative Washington, DC, no less. I stepped into an elevator with the friend that suggested me for the job. It was a Friday, he had no client interaction that day and he was wearing slacks, a sportcoat and a tie. The president of our operating unit stepped onto the elevator a couple of floors up, took one look at my friend and proceeded to berate him about his attire for the length of the uncomfortable ride up 10-or-so additional floors. While the interaction was shocking for me, a new twenty-something manager in a Fortune 100 company, I was able to pick out a couple of useful tidbits from the tirade:
- Dress for any contingency. In the business world, if you have to wear a suit sometimes, wear one all the time unless the situation specifically prescribes lesser attire
- Dress one level up. Dress for the job you want, not the one you have. The decision makers at that next level absolutely notice.
- In the business world, being overdressed is always forgiven. Being underdressed rarely is.
Over the years, I've come to some other conclusions. They've worked for me in my somewhat-narrow business discipline (Fortune 500 organizations / government).
- Whether you like it or not, if you are in a professional job, you represent your employer, even when off the clock or in some semi-work action like travelling. Some of the most important and profitable work a business performs and connections someone makes is while offsite/in transit/by chance/unplanned. Dress like a slob and you reduce the chance of that happening. Two of the three most significant professional occurrences in my career have started with some unknown person asking me, "so, what do you do?" and neither of them would have happened if I was not appropriately dressed.
- The clothes make the man (or woman). While a somewhat unsavory thought in today's culture of manufactured style-independence, your personal brand-image does indeed matter. Clothes and image will not get you there if you are lacking skill and drive. If you have skill and drive but lack in the personal image area, it very well may preclude success. It is the very rare person that can fail miserably in the image department and succeed in the business department. If you think you are that person, you are probably not.
- Surprisingly (to me, at least), all of this applies to men more than women. Men notice attire flubs more often, more readily harangue colleagues for mistakes and take historical personal image into account, more so than women, for significant actions like awarding new business, hiring and promotions. I’ve found this to be the case everywhere; the Middle-East, Europe, Asia and here in North America. Dunno about South America.
My experience, anyways…