These days, I see more and more people bringing with them their notebook computers to work, to school, or even to the coffee shop. Years back, notebooks weren't as common, but thanks to faster wireless Internet access and the cheaper costs, notebook computers have become more prevalent.
But you don't see people bringing their bulky laptop bags with them--those that make them look like agents who are selling insurance plans to people. No siree. As more people turn to portable computers, the availability of customized cases like laptop sleeves has also increased. Laptop sleeves come in different colors, sizes, and even material. It's a way for you to expose your personality.
If you don't think you would like to purchase your own laptop sleeve, you can always turn to sewing your own. It's pretty easy to do, but it involves you learning how to sew things, of course! I won't give you the details because it's pretty extensive, but you can check out these instructions from Ars Technica, which gives comprehensive instructions regarding the topic. All that you will need are the pieces of cloth that you are going to make your laptop sleeve with, needles, a sewing machine, and a lot of patience.
Of course the instructions were given with the assumption that you already know how to sew things. If you still don't know how, then you might want to learn first. You can also ask help from people in your household who knows how to sew. In any case, learning how to create your very own laptop sleeve presents a lot of opportunity for further customization. Aside from laptop sleeves, you can also learn to to create customized laptop bags, covers for your computers, iPhone cases, and such.
Learning how to sew your own laptop sleeve gives more personality to your computer and prevents you from looking like another of those insurance agents that knock on your door.