I have an oceanfront cottage and have "boarded up" the ocean-facing windows each winter before closing up for the season.
In the past I just used wood big enough to totally cover the window and frame, and would just use wood screws to fasten it directly to the cedar shingle siding.
This obviously leaves holes from the screws. This summer we just re-did the cedar shakes and window trim, and put new paint on the whole thing. It looks great now.
My question is - what is the best way to board up my windows so as to inflict the least damage to the trim/shngles/paint? Open to any suggestions that won't break the bank.