Likewise, I could have built something across the front of the house, using cattle panels and plastic sheeting. Something like this;
There are four front windows that would end up inside a lean-to like this. On certain days, I could open the windows around mid morning and take the chill off inside. We had a lean-to greenhouse before and did that. Kept the greenhouse from getting too hot for a while too.
I've also got most of the pipes leftover from one of these that I could do something with, probably the lean-to.
Should do something instead of waiting to build the big fancy high tunnel that will take weeks and four digit cost. As they say, something is better than nothing.
Even this;