Previous post by mooturner was expired last month so re-posting for those unaware of this deal. When you list qualifying items on Gumtree, you'll see this. Limited to 2 per month. Enjoy :)

Limited to 2 free insertion and final value fees per qualifying seller per qualifying sale per month during the promotion period. Sellers may list in all eBay categories, except the following excluded categories: Businesses for Sale (11759), Aircrafts (63676), Boats (26429), Caravans/Motorhomes (32633), Cars (29690), Motorcycles (32073), Trucks/Commercial Vehicles (6049), Real Estate (10542), Services (316), Flights (3253), Tickets (1305), Travel (3252), and Vouchers/Gift Certificates (184609).