One thing that amazed me when I sent out my CV originaly, was that to save companies money and a little time I enclosed a stamped adressed envelope. Of the approx. 50% of companies that decided to reply only 2 or 3 used the envelope, so much for saving money.
Could companies not just have a card saying, sorry no vacancies at present or come back with x hours? I am luck enough to have a job now but not with a company I even applied too!!