Ok so i actually discovered this about a year ago, before i bought an SLR camera. So if you have a compact point and shoot camera, and you say to yourself; "man i wish this camera could support a polarizing filter!". Well look no further than your own face! SUNGLASSES!! I know many will say "dude! old news!". But seriously, if you have polarized sunglasses, just shoot through those. For those of you with a fuji or something a bit larger, just buy aviators i suppose :D. Remember most sunnies are stronger at the top of the lense(because the sun is up)than at the bottom.
Give it a try and let me know how it works for you!