Searching for the perfect laptop bag? With so many choices, the task may seem daunting. But fear not, you will find the right bag for you.

First, determine the exact measurements of your laptop (length, depth, height). Don’t rely on screen size, measured diagonally, because although screen sizes of laptops may be the same, the actual dimensions may differ.

Next, determine exactly what you need to carry with the laptop in order to use it. Room for cords, cables, adapters, mouse and anything else should be included in the total space of your bag.

Also include accessories, such as iPod, Palm organizer, cell phone, paper, pens, files and books. When you know exactly what you need to carry, you can match the size of your laptop bag to what it must accommodate.

Your laptop bag should offer ample protection for your laptop. It must be well-padded with the degree of padding suited to how much jostling and knocking about the bag will endure. A laptop tote you carry in your car will require less padding than a messenger bag carried on your bike.

Be sure the bag provides a suspension strap so the laptop won’t hit the ground, and a cover so it won’t pop out. Your laptop should be “cocooned” to a greater or lesser degree within the bag.

Pockets are a major consideration. You want enough pockets to avoid a jumbled mess of cords and cables. Pockets should also accommodate small items like an iPod and cell phone.

A popular pocket is one for an external water bottle, providing easy access to water while protecting your laptop from spills. Easily accessible pockets for pens, cell phone, money, credit card, airline tickets or a map will help you stay organized. Expandable mesh pockets within the bag can accommodate bulkier gear.

Don’t forget about durability and maintenance. You don’t want a bag that shows every bit of dirt or smudge. You also want something that wears well and is well-made. Look for strong seams, heavy duty fabric, strong zippers and good construction. Waterproofing is essential if your bag will be exposed to the elements. And a laptop bag that doesn’t look like one will help keep muggers away.

Consider too your form of transportation. If you ride a bike or motorcycle, get a bag with extra protection from the elements and additional padding and anchoring in case of accidents or falls. You also want something that’s easy to carry while riding. Especially on a pedal bike, your bag should not interfere with riding or be so heavy it throws off balance.

Keep the weight of the bag itself in mind. Get the lightest possible bag to protect your laptop and carry your essentials. Make sure straps and handles are well-padded and comfortable.

Look for a bag that allows you to easily remove your laptop without having to dig through or remove everything else, especially if you travel with it.

Laptop bags come in many fabrics including nylon, plastic, hemp, cloth, synthetics, even rubber. With such a wide choice, you are sure to find something you like.

Finally, remember that even when you know exactly what you want, you still need the right store to find it. Because there is a much larger selection online, you may want to visit a few stores with your laptop and other gear, taking note of the types of bags that work. Then you can shop online with a knowledge of brands, styles, prices and materials before making a final decision.