I bought a laptop sleeve that's slightly too big in one direction, how could I pad it to make it a better fit?

And please don’t say shove a towel in the sleeve :p

It’s about 1.5 or 2 inches too big in width – any ideas on how I could fill up that space? I suppose I could sew something against the side.

http://www.amazon.co.uk/Belkin-Neoprene-Notebooks-15-6-Inch-cabernet/dp/B001V5JAVS/ref=sr_1_65?s=computers&ie=UTF8&qid=1313109491&sr=1-65

Thanks,
Az

Buy insulating foam from Walmart/Lowes/Home Depot/etc that you use for window air conditioners. Cut to fit.

laptop fan. to http://www.shortterminvestmentstrategy.com/2012-ultrabooks-harness-the-particular-greatest-of-tablets-in-order-to-fight-apple-macbook-air/”>laptop fan