A couple of winters ago, I tried various techniques and now prefer a very simple one. First, pack down a large area to set up your tent using snowshoes and let the snow refreeze for about 15 to 30 minutes. Next, use SMC snow stakes along the outside of your tent floor, just push them in with the concave side facing the tent. For guylines, take a length of cord and tie it between the tent loop and through the second big hole from the top of a SMC snow stake with the convex side facing the tent. This works like a vertical deadman, if there's enough snow. It's easier if you tie a loop at the end of the guy line and put the loop through the hole and over the top of the stake. Push the stake into the snow and you're done. If you want to get fancy, use a short section of 3/16 in. bungee cord between the stake and tent loop to maintain tension between the tent and stake. To remove the stake after it freezes into the snow, simply step on the stake to break the bond and pull out by the cord.