For those of you who want to weigh your luggage at home to avoid excess luggage fees, the TravelRight scale at Amazon is still at the £8.49 price (inc delivery) while it's gone up to £8.69 on their website:
Amazon page: www.amazon.co.uk/TravelRight-Luggage-Scale-Baggage-scale/dp/B002L28O26
Travelright page: www.itravelright.co.uk
2.5% off is still better than nothing.