How to Find The Cheapest Flights and Hotels

I have done a lot of online research trying to find the Cheapest flights and hotels I can. Considering that I'm a snowboarder and not super-rich, but love to travel, I need to find the cheapest flights possible.I've found Kayak is the best search engine for trips, they search the searcher websites and find you the cheapest site from sites like travelocity.com, orbitz.com, expedia.com, americanairliness.com, LAN.com, + about every search site available. I've spent days trying to figure out the best sites online, then I read an article in New York Times about Kayak. Its worked for me to buy my tickets back and forth from Chile to the United States 4 times.