The best way to keep paper from accumulating is to keep it out of the house.
When you receive the mail, get into the habit of sorting and reading the loose material right over the recycling bin. That way you can throw the unnecessary fliers, brochures and promotional items along with all the envelopes right into the bin as you sort through them and open the mail. The pile of paper will immediately decrease in size and you are left with paper that really in which you are really interested.