Are you willing to add a grand total of about 30 seconds and maybe 3 or 4 extra clicks to your online shopping to be able to get cashback in your bank account or vouchers to spend on eBay for almost free?
My mobile battery died on me overnight so I've just used 2,000 Nectar points on a new battery for the phone that will be with me on Tuesday or Wednesday.
How much did I actually end up paying?
Less than a fiver including delivery of £2.99!
It took an extra couple of clicks with my weekly shopping every week and I paid less than £5 for a new battery for my phone!
Unless you're in too much of a hurry to get things online (and it's happened to me a few times so I do understand) then that extra few clicks and seconds can make all the difference for things like this!