Bargain Hunter: Nimber looks to deliver savings and profit as it turns us into a nation of couriers

The social delivery service helps you earn money while going about your normal life, while the Post Office has tips on how to save money on your European holiday

Looking for a cheaper way of sending items? Or a chance to make some extra money? Newly arrived on our shores this month from Norway is the social delivery service Nimber, which could help in both ways.

To earn money while going about your normal life, register as a "bringer" at Nimber.com. Once it has your details – and the details of your journeys – it matches you with someone wanting to send an item, with the price agreed between you.

The beauty of the system is that, in theory, it makes use of existing car and van capacity (and even London's Tube, train and bus network) by targeting journeys that are happening anyway.

A ticket to ride at £10 off if you join the cashback train

Sign up to Topcashback.co.uk next week and you can get a tenner off a train ticket. The site is offering 5,000 new members £10 cashback on train ticket purchases from Thetrainline.com between 1 and 7 June.

Book a cut-price 'American Psycho' at Blackwell's

Bookstore Blackwell's is offering 30 per cent off 24 Picador Classics until 16 June, both online and at many of its shops. The offer includes books that have inspired cult films such as American Psycho by Bret Easton Ellis and The Lovely Bones by Alice Sebold, both down from £8.99 to £6.29. Details: bit.ly/1FD5pkYan.biz.

Free checks on car seats for Child Safety Week

From Monday it's Child Safety Week, so Halfords is offering free checks on any child car seat from 1 to 7 June. The retailer promises to check that seats are correctly fitted, which is especially important if you've moved them to a new or different car.

Co-op stores offer a grand welcome to shoppers

Co-operative stores are offering the chance to "Swipe and Win" a grand in-store until 9 June. Each week, 20 prizes of £1,000 worth of Co-operative Group vouchers will be awarded, plus there are hundreds of thousands of "instant win" coupons.

Sainsbury's pledges to beat rivals on currency deals

If you're shopping around for currency, Sainsbury's Bank Travel Money claims that, up until 29 June, it will beat any in-store travel money rates that customers find at their local Post Office or M&S Bank travel money bureaux (within five miles). But do check online rates too, as you'll find most of the best deals there.

Your holiday cash will go further, but not in the resort

The euro's seven-year low means holiday shopping costs have fallen heavily across much of Europe, according to the Post Office. But don't be tempted to buy your holiday groceries at the resort's local mini-mart when on holiday. The Post Office warns you could pay up to 61 per cent extra compared with travelling to the nearest supermarket. In Crete, for instance, 20 food and drink staples cost £103.96, instead of £64.64 at a supermarket.

Got any deals or discounts to share with readers? Send details and deadlines to your money@independent.co.uk