When it comes to fashion, not every trend or style is for everyone. Part of being fashionable is knowing what looks good on you, being willing to wear the correct size and working what you've got with confidence. Having said that, there are some looks that really don't look good on anyone.

One fashion don't that I really can't stand is the "muffin top", which Martha Edwards recently talked about banishing forever. I think what bugs me so much about it is that most of the people I see rocking the muffin top do so needlessly. It's more about clothing size than weight, as even a tiny size 2 runs the risk of developing Dunlap Syndrome if they insist on squeezing into size 0 jeans and wearing a too-short t-shirt to finish off their ensemble.

Five other major don'ts include:

• Jean on Jean: Lovingly and hilariously referred to as the "Canadian Tuxedo" in my homeland, this fashion sin is especially terrible when the demin colors don't match.
• Sunglasses Indoors: It's unnecessary and makes you come across as either shady or pretentious. Or both.
• Sneakers with skirts: As the article points out, the only acceptable reason for this is if you're walking to work and are going to change when you get to the office. Otherwise, there are lots of more appropriate yet comfy options.
• Blatant Cleavage: There is a difference between sexy and sleazy and a time and place for everything (but in this case, never at work if at all possible). Every woman needs to figure out for herself how much boob is too much, although if your shirt is so low that you're running the risk of a nipple slip, you've probably gone too far.
• Panty Lines: Almost every woman has been guilty of this fashion sin. To avoid panty lines, wear clothes that fit (too-tight pants mean your undies will show through), try a thong or seamless underwear or, if you're comfortable with it, go commando.

Are there any fashion don'ts that you absolutely can't stand?