In many households, the Christmas tree is the biggest symbol of the holiday season, and adding snow to the tree brings the outdoor season inside by using tufts of loose polyfill to mimic snow. The polyfill can be cut or shaped by hand to create different effects of snow. The polyfill that works best for decorating a Christmas tree is the loose polyfill used to stuff toys or pillows, rather than the sheets of polyfill used for quilting or padding objects.
Set the tree up a few feet away from any walls to make it easier to put the "snow" evenly on all sides of the tree. String the lights on the tree before you start placing the polyfill on the tree.
Experiment with how you want the tree to look. Larger, continuous pieces of polyfill create the appearance of a heavy snowfall, whereas smaller pieces of polyfill in length, width and height give the impression of a light snowfall --- similar to a flocked Christmas tree.
Start placing the polyfill at the top of the tree and work your way down, keeping the size of the pieces consistent throughout the branches. Step back a few feet from time to time to check on the overall appearance of the tree. Polyfill is easy to work with and since you do not need to glue the material to the tree to get it to stick, you can rearrange it countless times until you are satisfied with the look.
If you use a real tree and want to chip it for use in the landscape, remove the polyfill before sending it through a chipper.
Use care if you have babies or toddlers in the house, since they could pick the polyfill off the tree and eat it. If you use older lights or bulbs that generate a lot of heat, place the polyfill far enough away from the lights, so that the material does not melt, creating a hazardous gas.