One of the most important considerations in deciding where to print is the space you have around your printing area. Not only do you need a space large enough for your screen, but you also need room to move around it, a drying area for your printed fabric, and a place to rest your screen between prints.
You don’t want to rest your screen flat between prints as the paint on the underside will mark your printing area. Instead, attach your screen to hinge clamps and keep your screen raised, or alternatively you could use a wooden baton to rest the screen on.
You need to have plenty of room to keep your area clean and also plenty of space to move your printed items to, whether it be table space, a drying rack or perhaps constructing a temporary line to peg your fabrics from.
As well as deciding where to print, you also need an area to clean your screen. Ideally this would be outside with a hose. You can clean your screen in a large sink or bath, but be mindful that if you are printing regularly the paint can clog the sink.