The award-winning FORCE cancer charity shop in Heavitree celebrates its 20th birthday this week with plans in place for a two-day party. On Friday and Saturday the shop in Fore Street will have more than its usual range of bargains with lots of special offers on the theme of 20. There will be: 20 per cent off shoes and some 20p flip flops; a 20p clothes rail and 20p T-shirts; a selection of romance, thriller and mystery books at 20p; a kids clothes rail with 20p items; 20p kids goodie bags; at least 20 golden ticket items hidden around the store each day offering great knock down prices....