Gather fresh cedar branches to work with. They should be 12 to 18 inches long for simple swags or 6 to 8 inches long for swag ropes. Whatever the size, choose branches that are green and free of dead material, with slender, supple stems.
Condition the freshly gathered cedar for several hours before using it, by cutting the stems at a 45 degree angle and then gently crushing the cut ends with a small hammer before placing the branches in a bucket or bowl of warm water.
Select your greenery---two or three branches is usual, but you will want a bunch that is thick enough to look good, yet compact enough to hang relatively flat against a door or other surface.
Arrange the branches into a pleasing pattern and tie the stems tightly together with floral wire, leaving a small loop in the back for hanging. (Wrap a few turns of floral tape around the stems to bind them further and disguise the ragged ends if desired.)
Add a large bow at the top, and decorate with pine cones, ornaments or other seasonal materials to finish.
Follow steps 1 through 4 above, using smaller branch ends---6 to 8 inches long.
Cut a piece of jute twine (of whatever length you prefer) and lay it on a table or other flat work surface.
Lay one bundle of cedar on top of the twine and attach it there by twisting a piece of wire securely around both it and the twine.
Place another bundle so as to slightly overlap the first, and then wire it in place the same way.
Continue wiring bundles of cedar until you reach the end of the twine. Add to the look with other evergreens or additional floral materials---Lauren Bonar Swezey, writing for Sunset magazine, lists some wonderful ideas to give your swags extra pizazz.