On tonight's programme, a Birmingham-based nurse with a love for hats demonstrates her toilet product; a product designer, who's travelled all the way from Singapore, pitches his new tablet computer; and a husband-and-wife team from Bradford try to convince the Dragons that their caravan covers are really something to get excited about.

Also in the episode: a Halifax mother of two with her oven cleaner, an invention from an airline pilot that can tow children, and a four-year-old boy pitches for a seventy-five-thousand-pound investment and a bag of sweets.

Tonight sees the penultimate episode of the current series, with more intrepid businessmen and women hoping to receive a cash injection from the five multimillionaires. The Dragons have already proven that they are willing to invest in the right idea - will they spot the next big thing tonight?

Entrepreneurs include: two Berkshire design graduates who think they've solved the multiple-pint juggle when carrying a round back from the bar, a former celebrity PA who has an awkward moment when her mobile phone rings during her pitch, and an ex-DJ from south Wales who hopes his role-play disco will best demonstrate his product for sore feet.

Also pitched are a website for 'amazing' retirees, a gadget to reduce our food waste, and a car that's also a barbeque.