My Voucher Codes has a wide range of discount voucher sources, with good search and category options. Highly recommended.
Categories listed are:
Fashion
Food & Drink
Restaurants, Takeaways & Bars
Kids, Babies & Toys
Gifts & Occasions
Music, Books, Games & Movies
Travel
Days Out & Attractions
Technology & Electrical
Home & Garden
Health & Beauty
Sports, Fitness & Outdoors