Get the right accessories
Aside from your paint, brushes, paint jug, and sixer of BL Limes, you’ll need some add-ons to help you get this job done right. The most common accessories are roller extenders, a step ladder, different-sized brushes for different areas, a drop cloth (or two) for your floor and to cover your furniture), and any Bruce Springsteen album that is called Nebraska.
Clear the room
The next thing you'll want to do is deflate your inflatable couch, chair, and bed, and… wait… you have actual furniture? Oh… yeah, me too. Okay, so the next thing to do is move whatever furniture you can out of the room. Anything that's too big, cover with a drop cloth.