Lisa Holloway travels the UK to meet people who are keen on turning their empty rooms into potential goldmines. Lisa heads to Worthing, where eco-enthusiasts Lee and Hilary are keen to make more use of the space in their red brick home. With many traditional seaside B&Bs nearby, Lisa hopes to bring out the couple's green credentials. From animal-friendly breakfasts to homemade soap, Lee and Hilary embrace Lisa's theme - but will their efforts impress a green tourism expert?