I don't whether this would work for you where you are but it has got me a few contracts down here in Plymouth, bit I have spec lettered offices....solicitors at the moment, (schools a couple of months ago). I am in the domestic cleaning side of business, but those spec letters have gained me a couple of office cleaning contracts, and that is without me having to spend too much money, or time (I am still doing a lot of cleaning myself and only have 1 other employee), but I don't think that is too bad as I have only been trading as a 'company' for a few months!!