Was at Shangri-la, Ortigas with JAngelo and Marc this afternoon on an interview. After that, J helped me looked for a good laptop bag (or sleeve) and found several at Rustans and Jansport.
The one I got was a neat Jansport Laptop Shockshield Sleeve:

The laptop sleeve is made of high-density foam and neoprene, quilted and weighs 410 gms, with velcro closure — just wide enough to fit a 12-inch laptop.
Fits perfectly well inside my mailman bag.
Damage: Php2,290


http://www.lapdancetechgear.com also carries ladies laptop bags :)