Positioning a light reflector is easy enough with an assistant, a reflector holder or propping it up against something convenient. But if you are on your own or really pushed for time, you might consider a Lastolite Trigrip Reflector. They feature a built-in handle. Soft and light, the handle allows you to grip the reflector with one hand without it twisting too much. You'll be familiar with colour options such as Sunfire on one side and silver on the other. Choose a size to suit, but the familiar circle is replaced with a triangular design to facilitate the Trigrip. The 30" (approx) size costs £58 + vat.