I'm sure you can, Cindy, especially if you can get a good deal on your flights.
Many accomodations in the UK provide breakfast, you can stop at delis and have light lunch/picnics to save on meal costs.
Staying at convents or monasteries can save you money too. [url=BellaOnline ALERT: For anti-spam reasons, we restrict the number of URLs allowed in a given post. You have exceeded our maximum number of URLs.