I still have an old version of Autosketch that I used for drawing plans. Recently I also had success for simple stuff (stage/room plans) with LibreCAD (Win,Mac,Linux, open source). Sketchup also works. You could also try Draftsight.
LibreCAD might fit your needs nicely without costing you. Any CAD suite is going to be heavy and will have a somewhat steep learning curve, but you should be able to do just about any drafting you want in it.
To the question you asked, there are several CAD programs (such as librecad) as well as things like Google Sketchup that you can make plans with. You should be ready to invest your time in learning how they work before you expect to make progress.
Now for why you should look more into how much you invest in planning and whether it is worth it by asking yourself some questions: How complex is your actual project? Are you simply renovating an area or building an addition? Are you planning to make structural changes? Do you know all the relevant/required building codes that would affect the project? Are you hiring contractors?
You also need to look at who will be doing the plans -- is it company with an architect and/or engineer who will determine the answers to all the questions above and ensure that your changes will meet code and be structurally sound, or are they simply a designer whose primary focus is to simply design the layout of the structure and works with your engineers/contractors to modify the plan designs (at a cost) to accommodate necessary changes? Quality architects have an understanding of the engineering and building codes that must be met. So the real question, depending on your project, might be: Are you qualified/knowledgeable enough to actually design your own plans -- if you are, keep in mind that you'll be on the hook for the mistakes you made when your contractors follow your plans as they agreed to do. A good contractor will pay attention and let you know about potential problems in your design plan -- a bad one will do things to the plan and charge you for repairs/failed inspections/etc.
The simpler the renovation, the less likely you need professional management and plans; the more complex and/or expensive, the more you benefit from a good general contractor and architectural/engineering firm.
Just a few cents, on the topic.
I didn't draw it its a one I found. Typically though I use Vectorworks. I have been using LibreCad for simple stuff. So far its alright, the interface is more like Autocad. You are right about scketchup its clunky to make working drawings in.