A couple of great tips from Frommers.com:

—National Express, a UK bus company, has lowered fares to about $2 for bus trips within the UK. They also have $21 fares from London to Paris and Amsterdam.

Here’s the best part: if you find a lower bus fare, they’ll give you your weight in cheese. Really. Go back and read that again. If you find a lower bus fare, they’ll send you roughly 14 Stone of cheese. Is that a good thing or a bad thing?

—The second tip is a website that lists the seat pitch for nearly every airline in each class of service. It’s a nice guide if you’re choosing between two carriers for a long-haul flight. On a flight from JFK to London Heathrow, for example, you can choose between Virgin Atlantic with 31 inches of seat pitch and American with 35 inches. Those 4 inches equate to a significant boost in legroom.