i have sent out 3 for 2 offers to my existing clients to be done in January or February, i find this by far the best offer that they react to, its only ever sent out to past clients as i dont do random leaflets, i also have a minimum spent of £140 , depending how the year goes, i might do the same offer in the spring, usually get about a 5-1 ish return, sometimes a lot more, so well worth it, when i say i send them what i really mean is i reuse the same flyer,change the dates, attach the client list and email it for someone else to do, it costs me 71p each, thats the whole service..i never see a piece of paper, envelope or stamp.....i am a very very lazy marketer but it works for me