Good way to find travel deals?

I am looking for good sites to find travel deals. My friends and I don't have a particular destination in mind or a time we have to go, so its pretty flexible. ... Its October, not most people have been roving means of a Hollidays. But here's a little good tips. Book early for a flight, hotel, as well as let if your starting during a Holliday season. Book on a Tuesday. Leave on a wednesday, as well as stay an additional day( similar to a monday instead of sunday). ...