Trish: Help Me Make It Thru Winter

Among the items that Publisher Trish Gannon/River Journal lists among her must-have tools to get through the winter are (complete list here) :

• Roof rakes
• Super hot hands
• A plastic grain scoop
• A good sled
• Yaktrax
• Softlips lip balm
• Sorels (or other good winter boot)

Question: What tool do you consider an absolute must to get through winter?