DraftSight is the software I have personally installed on my own computer. When I first started using DraftSight it was for freelance work. Now I use it for working at home and on the road because it is the best .dwg compatible software you can get for the price. On my recommendation a couple of my colleagues have installed it on their own computers to use when they are away from work b DraftSight access drawings to deal with after hours emergency calls. If you are an Autocad LT user you can open DraftSight and be working productively in minutes, especially if you use keyboard shortcuts. If you're a SOLIDWORKS user it gives you a way to view and edit 2D .dwgs exported from SOLIDWORKS.