I'm right there with you. Instead of overwintering, I am using windows and lights to keep the harvest going with my perennials. Currently, I am having great success with growing Juliet tomatoes from seed. This will be my first year too.

I am trying to get started up this weekend. I have a fairytale eggplant that I thought was dead, but am going to bring it in today as I saw some life to it, lol! Not sure if this will do any good or not :^P

going to seed up some basil and parsley for window sill.

Am considering doing some tomato - pepper - cukes in my room just using the windows - they frame the corner, facing s and w so pretty good. With a wee bit of whatever they get from the very poor lighting in the room. They may start putting out in Feb or so when the days are getting a bit longer again.

Thinking about leafy stuff in the kitchen - or heartier stuff in the mudroom - non heated but enclosed.

Not sure how far to go on this.......

Last year - I made a huge mess putting industrial shelves in my parlor for the windows, then adding a bunch of shop lights when the sun dipped behind the house next door. It was not attractive, and a big pain and scratched my hardwood floors. I need a heated and an unheated greenhouse, oh and an acre or two to boot!