You can, kind of...keep your torrents for seeding but limit the overall upload speed to 5 or 10KBps. After you've seeded it for the required time, use your points/upload data to remove any arrears. This method has been working for me for the last 2 years. I must have spent around $20 in 2 years which works out to approx 50 bucks a month...
I actually like to UL. As much as I can.....! I never remove a torrent from my client.