Having been advised not to use the type of storm strap that goes over the awning and could therefore damage the waterproof coating. Has anyone used the tie down kits as available from ebay :
http://cgi.ebay.co.uk/CARAVAN-AWNING-TENT-STORM-TIE-DOWN-STRAP-KIT_W0QQitemZ400070963122QQcmdZViewItemQQptZUK_Campervan_Caravan_Accessories?hash=item5d26166fb2&_trksid=p3286.c0.m14
or the straps available from Screwfix:
http://www.screwfix.com/prods/20481/Hand-Tools/Load-Handling/Thorsen-1-8m-x-25mm-Cambuckle-Strap-Set-2Pcs
http://cgi.ebay.co.uk/CARAVAN-AWNING-TENT-STORM-TIE-DOWN-STRAP-KIT_W0QQitemZ400070963122QQcmdZViewItemQQptZUK_Campervan_Caravan_Accessories?hash=item5d26166fb2&_trksid=p3286.c0.m14
or the straps available from Screwfix:
http://www.screwfix.com/prods/20481/Hand-Tools/Load-Handling/Thorsen-1-8m-x-25mm-Cambuckle-Strap-Set-2Pcs