On the subject of shoes for long/wide feet, check out Kumfs <link> They're made in New Zealand, come in a huge variety of sizes and widths, and most come deep enough to stick an arch supporting insert in. (Say like these: <link>

Fashion wise, there's very little I can add, except that much of this wisdom can be found in a book called "How to Say It For Women," a guide for women who want to succeed in business. <link> The author has a couple chapters on proper dress and grooming, in addition to lots of advice on effective communication through words, writings, and body language.