Shrink wrap for winter storage

Location

Maine
United States
US

Anyone in the northern states use shrink wrap for winter storage? Do you use the mast for wrap support? Any issues that I should know? 
I've just lost my $250 a year inside storage after 25 years. Need a new plan.

My boat lives on its trailer under a "trailing/mooring cover" from the Sailors Tailor.  They advertise in Scots&Water.  In the summer my boat is at the boatyard of a nearby yacht club, parked close to their boat ramp, with the mast up;  in the winter she lives in my own yard, with the mast down, which supports the cover and creates a nicely sloped "roof".  Enough tiedowns to be quite secure.  I am on my 2nd cover -- I got about 15 years out of the first one.  Thus, quite economical.   Hope this helps!