Donald Trump's comb-over. Marge Simpson's beehive. Don King's not-quite-afro, not-quite-flat-top.

Sometimes, Hollywood has a lot to learn.

Paying a visit to the hairstylist can often be nerve-racking, especially when putting your "life" in their hands. One wrong snip, and you're socially incoherent for the next six months. But knowing what you want to do with your hair will help the stylist and give you the power to make sure things run smoothly. All it takes is a little dose of hairstyle advice to make sure your "mane squeeze" is fab in no time.

Here's what made the cut this fall:

For the first time since maybe the '70s, hair has, surprisingly, gone au natural. No more chunky layers and expensive coloring jobs. Hair is long (with the usual six-week trimming of course) and parted in the middle. Neither intensely voluminous nor pin-straight, the slight waviness to the hair probably results from having dried naturally. Bangs are also long and swept to the side for a youthful, carefree look. As a hairstyle often paired with boho chic, the simplicity of the hair doesn't distract from the detailing of prints and layering of colors.

As beautifully displayed by Sarah Jessica Parker in this month's Vogue, each one of us can be a starlet with a little Hollywood glam. Do it yourself by using a curling iron to create soft but controlled curls. Hair is always deeply parted to the side and gathered behind the ear on the side where the least hair falls. Accessories work best and allow for personal creativity: beaded barrettes, ostrich feathers or jeweled pins. Although recreating the look can only go so far -- attitude is everything.

No slip-ups can happen here. For those who would rather part from the "straightforward" hairstyle, asymmetric cuts offer just that. The cut features substantially longer hair on one side than the other for an edgy and sharp appearance. And these blunt cuts can either be for long hair or short bobs. Either way, make sure you have a hot iron because this look works best with straight hair.

Guys' hairstyles do not seem to waver from their love of schoolhouse rock. Short on top with longer layers over the ears, this tossed, wild shag invokes the days of rocker Jim Morrison's electric melodies. But a good suggestion for taming this stormy-do: Avoid unnecessary thickness from adding too many layers in an attempt to create texture.

Never mind mohawks. Guys are also swooning for the sleek and seductive style of yesterday's Cary Grant. Hair falls down to as far as the collarbone and is lean, mean and long all over. And with a little bit or wax or gel, the slicked back look guarantees heartthrob status on any date or formal event. People shouldn't postpone the stylist the same way everybody postpones doctors and dentists. You can do some real damage that way.

You don't need to suffer from a case of bad hair anymore. With a little direction when tackling that stubborn head of yours, the local stylist will have you looking and feeling great.