If when you stand in front of your window(s) and feel a breeze, you have a draft. A draft allows cold air to enter your home. This subsequently, can be very costly during the cold winter months.
Your thermostat will work overtime to maintain a comfortable temperature inside your home. I came up with two easy solutions (other than replacing the windows) to eliminate drafts from your windows that will save you money on your heating bill.
1- First, visit your local home improvement store and purchase a large roll of thick plastic. Upon your returning home, measure the length and width of the windows and cut the plastic a little larger than your measurement. Now, starting at the top of the window using either doubled sided tape or a staple gun, adhere the plastic onto the interior of the window frame. Do this to all of your windows. Use should soon realize the difference in how much less your thermostat has to work, to heat your home.