Yes, I do the same as Jackie. Production line is best, Ready to ship section with most popular options and colors is a big help. I also do pre orders. So I'll list a few designs (on etsy, fb, Instagram etc) and offer customers the chance to pre order those designs in any colors they choose until a set date. I then deactivate all sections in my shop except ready to ship while I work on production of pre orders. This gives you a better idea of what's popular, color etc and ensures you don't have a lot of stock sitting around that you eventually have to discount.
I also only do one or two craft show a year and during my "free time" ( late night when my babies are asleep, in between orders etc) I'll work on a piece for my next specific show. It may mean working on a christmas sign in April etc but it's such a relief to have that stock ready to go rather than scrambling near the end over extending yourself for the show.
My only other tip is to purchase your lumber in bulk and spend a few days every other week or so, cutting and sanding. I always have a bundle finished and ready for base coats. It's so much less daunting! I hope to hire help someday but I think it'll be hard for me to keep from micromanaging lol