Ok DIY's...? How effective is caulking your window shut for the winter compared plastic-ing...

How effective is caulking your window shut for the winter compared plastic-ing the windows?

Putting the plastic up is a torment in my azz so I am trying to find alternatives, I am curious of caulking the opeinings and seam and cracks unitl i need to undo them in the spring. Is near that much heat loss through the fanlight pane itself? I assume the cold forces its way into the house via small opening in the entire skylight. What do you think?
Answers:    you inevitability to do both actually

caulk any gap with a flexible caulk to destroy air ooze.

a single paine of glass have an R value of 1.0 Putting the plastic over the intact casement( its not that hard..use your tresses dryer) will significantly reduce warmth loss
Test it for yourself. Take a candle that is lit and hold it around a glass to see whether there is a draft. According to my utility provider's website boil loss through the glass can be significant on an elder home. Besides, a rat can enter a hole the size of a quarter and a mouse the size of a dime, so look at sealing up the window as rodent proofing at the same time that you are good yourself from heat loss.