These things are pretty awesome.
I've started using one at work to help with dry eyes and it's very obvious from a day's usage that it will help with dryness and redness. I'm stoked, but I did spend a lot more locally for one. At least I can claim the expense though.
My coworker who suffers from bad sinuses resulting in a constant cough is coughing significantly less just today. He's skeptical but I'm not as I don't have to listen to as much coughing throughout the day.
Some other cheap humidifiers that have the CLICKMORE discount:
http://www.ebay.com.au/itm/1-3L-Ultrasonic-Humidifier-Air-Ro… (this is actually the one I bought locally for considerably more, but the savings for a weeks worth of no more dry eyes compared to waiting for postage was worth almost worth it)
http://www.ebay.com.au/itm/35-12-2-3L-Air-Humidifier-Ultraso…
http://www.ebay.com.au/itm/3-5L-Vaporiser-Air-Humidifier-SIM…
http://www.ebay.com.au/itm/Air-Humidifier-Ultrasonic-Cool-Mi…
such a logical combination