If you live near a Northern Tool store now is a great time to pick up ratcheting or lever-style chain binders for trailing use for cheap. They have both for sale (5/16" / 3/8"; 5400# WLL) for $25 each (2 for $50). They also have a sales flyer out there with $10 off $50 purchase and $20 off $100 purchase which brings the total price to $20/ea.
Here's a link to the ratcheting version:
Ultra| Northern Tool + Equipment