Second-hand and nearly-new sales
Many mums will be familiar with The National Childbirth Trust (NCT) and their Nearly New Sales which take place in most parts of the country. NCT member get early entry but sales are open to all. Goods are excellent-quality and there's a lot of competition so arrive as early as you can - you could volunteer to help and get a good look-in first! Entry charges vary but usually between £1-£2.
Local playgroup, nursery and school jumble sales can also be worthwhile. Two excellent second-hand websites dedicated to baby items are nappyvalley.co.uk and preloved.co.uk. Ask family and friends too as it's amazing what lurks in people's lofts, or try car boot fairs, charity shops, local paper ad pages and websites like Gumtree.