Here are the hottest gear deals for today, Thursday October 21, 2010. Remember, these deals are often valid for just one day, so act fast before they are gone.

Today's first deal is for a 2-pack of noise isolating headphones. These may not be on par with your average V-Moda or Shure headphones, but they are free, so you really can't complain too much. Click here for this deal.

Next up is a 3-in-1 iPod/iPhone car mount/charger/fm transmitter. Reviews are a mixed bag, but at $6.77, it may be worth the gamble. Click here for this deal.

Today's third deal is for a luggage locator gadget. Attach one part to your bag, and use the transmitter to set off an alarm. Priced at just $5.46, this could be one quick way to prevent having to push your way through a crowd to find your luggage. Click here for this deal.

Our fourth and final deal of the day is just in time for darker nights, when the weather is still good for biking - this $30 Cateye light/computer set keeps you safe(r) and tells you your speed and distance. Click here for this deal.

Filed under: Gadling's Daily Deal