I've been carrying around the same laptop sleeve for about 6 years, and it has seen better days. Since it's something I use almost every day, I think it's worth my time to find a really cute one among the thousands of options online. Here are some contenders:
eBags.com has hundreds of options ranging from $19 to $80+
From Nancy (via Etsy) uses mod fabrics and fleece to create chic options for under $25. I'm loving the blue and yellow option (shocker!)
Kimoley Bags (via Etsy) uses neoprene in great modern prints to make laptop sleeves as well as Kindle and iPad covers. Right now, this shop is in the lead.
Bertie's Closer (via Etsy) is a shop devoted to laptop/iPad sleeves in a huge variety of fabrics. I love that you can get an Amy Butler print Mac sleeve.
And if you want everyone in the conference room to do a double take when you unpack you bag, check out the Lollington shop on Etsy. I love the geeky chic, playful designs.
Which ones do you like best?