I have to say the best thing I put in my sewing room was those black tiles that interlock. Its nice to walk on them as I have a cement floor (especially in the winter time). Paint your dry wall after you insulate for eitiher heat or cold weather or both. Lighting- I use the bulbs that simulate outside lighting; so things are a truer color (if that makes sense). LOTS of electrical outlets .. Never know when you need it . .Oh yeah the best part: TV and radio ! LOL :-)