Mum rescued my projector from the crusher at work, and I have a big white wall I use as a screen. I have an actual screen too, but it's easier just to use the wall. Sound is a bit of a problem; my speakers are behind me when I watch films, and my headphones never last very long before the wires in the cable start to go. Also, I have translucent white blinds that let all the light in, so I can't watch things on the projector during the day, and there's still a lot of light from the street lights at night, but it's acceptable for me, and definitely preferable to going to the cinema.