In response to 'the burgled letter' the traffic on the ACTUAL website increased by 21%. From the 850 receivers we had a response rate from 16% via web and phone calls. 6% finally bought new security windows, that are 51 new clients with an business volume up to 610.000 euros. The costs for the 850 stamped envelopes postal service included were 1.650,– Euros, so this direct mail was the most efficient advertising ACTUAL ever did.