Here’s a quick video tutorial by Olivia Speranza teaching how to create an infinite white background.
It’s possible to build this entire setup with white fabric, and cheap halogen shop lights or household tungsten bulbs, but after you add everything together, these [compact fluorescent lights] don’t seem like such a bad deal. Especially since they won’t generate as much heat or draw excessive power that can blow out household fuses. [#]
The trick is to light your background and subject separately, exposing for your subject so that the background is slightly blown out, showing as pure white.