"Usually I trundle about in trainers and baggy jeans, looking about as attractive as a potato"

In this quote, Gail Porter is describing her normal appearance. She discusses that she typically wears fitness instructors and saggy denims, which recommends that she prefers convenience over style. She then compares her appearance to that of a potato, suggesting that she does not consider herself to be extremely attractive. This might be a self-deprecating comment or an amusing way of acknowledging her casual design. Overall, the quote provides insight into Porter's laid-back and down-to-earth personality, along with her ability to poke fun at herself.