Pear

Key points:

Your main goal should be to balance the appearance of your upper body with the width of your lower body: think about how to accentuate your 'smaller' areas, and drawing attention to your upper body/face it you don't like the width of your hips and legs with more fitted tops and neckline interest.
To minimize the appearance of your bottom half, always wear solid-color pants/skirts and for the most slimming look, stick with dark brown, black or navy or jeans in a dark wash.
Avoid any embellishments or patterns on pants/skirts--they will only draw attention to the area you want to hide.

Best Pants:

Many stylists recommend a flare style pant leg for pear shape girls. I agree with some caveats. I prefer a wide leg flare style, as opposed to the traditional flare leg that is slimmer through the knee and flared only at the bottom. I find many traditional flares to be overwhelming, especially on smaller frames, and even sometimes on my size 12 body. I prefer a straighter leg with a slight flare for jeans, straight or bootcut pants and wide-leg trousers on pear shapes.
The key here is to create points of attention at your upper body and towards your feet and skip your hips altogether.
Please don't wear capris. This style doesn't look good on anyone in my opinion, least of all pear shapes--the leg will typically hit in the middle of the calf, which is often the heaviest part of the leg--this will make you look 'stumpy' and shows off your relatively thicker legs/ankles.

Best Skirts:

You can wear almost any type of skirt, but what's most important is the length - stick to just under the knee or right above the ankle - don't EVER let the hem of a skirt hit your leg at its heaviest.
With any type of skirt, make sure the cut drapes smoothly over your hips and then either flares out to an a-line or circle style, or continues straight down. Do not buy into the pencil skirt trend, it will only accentuate your hips and legs.

Best Dresses:

An Empire waist (where the waist line is higher, almost right under the bust) style is by far the most flattering style for pear shapes.
Wrap dresses in simple prints or solid colors are perfect for you becuase they accentuate your waist and draw attention to your neckline.

Best tops:

This is where you can have a little fun. If you're like me and you love your upper half and waistline, then you will want to accentuate it as much as possible.
A good top for you is a wrap style with a v-neck, this style defines your waist and draws attention towards your face with the v-neck: perfect!
Also, a boatneck top does wonders for balancing out hips. When choosing button down blouses and tops, pay close attention to the fit.
DO NOT choose tops that are boxy or have no shape, look for blouses that are nipped a bit in the waist (this goes for jackets as well) or have some detailing around the waistline like a belt or rouching.