Ely is rather touristy, and the charity shops around here have definitely gone upmarket in recent years. Ergo bargains are few and far between. Books, CDs and DVDs still affordable, as are fabrics, but the rest... Forget it... I often see stuff that's more expensive than the shop it originally would have come from. I have had some good bargains over the years, though...
A Toggi fleece-lined gilet for £7 - I've had SO much wear out of it, a beautiful imari-patterned tyg, an 18 carat gold bracelet set with blue topaz for £1.99 (they didn't recognise the Italian hallmarks), some Victorian books on military history, Jane's Fighting Ships (1914 and 1918), an Indian silver sugar bowl for £3.99 and a Grand Prix yearbook from 1963 for £5 which had a surprise of prints of Mike Hawthorn, Stirling Moss and a couple of other noted drivers from the late 50s and early 60s hidden inside the dust jacket. I only found them when I peeled away the tape holding the dust jacket in place.