The big money lies in spotting collectables to sell on, so research online first or (subtly) use your mobile phone's web browser.
There's a quick way to glean a product's market value on eBay*. Fill in the search box and tick 'completed items' on the left-hand grey bar. It'll come up with a list of prices similar auctions have already fetched. Then sort by "Price: lowest first". If the price is red, it means no one bought it. Green means it sold.
How much? The earning potential increases with your knowledge of rare items and collectable brands, and a little luck doesn't go amiss either. If you're in the right place at the right time, this could net you £100s extra a year.
Find out more: Read other MoneySavers' top suggestions or add yours in the Spot & flog on eBay thread. More hints are in the eBay, Auctions, Car Boot & Jumble Sales board.
Sell unwanted gold for CASH!” TV, mags and billboard ads pulse with promises, yet rarely seem to live up to them.
Get cash for old goldHowever, amid the scrap are shining examples – meaning £15 per 9ct stud earrings and £85 per 18ct gold ring is possible.
How much? Do it the right way and, depending on how much bling you unearth, it's possible to make jaw-dropping sums, as MoneySaver Goochie did:
"I sent off 32g of gold (old broken earrings and chains that I haven't worn for 20+ years) and 35g of silver yesterday afternoon by special delivery (by 1pm), and got £272!"