When making a close up photo you often do not want the background to be distracting. There are different ways to establish this. One technique is to make the background completely white, which is often seen in professional portraits. You can do this yourself without making use of a professional photo studio. The only thing you need is a white wall, a flashgun you can trigger with a remote and a flash on your camera.
The photograph below is taken with a Canon 7D, speed light and the popup flash on the 7D. The remote flash will illuminate the wall. Make sure you put the flash in manual mode and give it full power, you want to over expose the background. You also may want to cover the popup flash with a piece of paper or a paper serviette, so that the light from the popup flash is not too harsh and more evenly spread. Set your camera in manual mode and try an aperture of F1/8, and a shutter speed of about /100s, then make a test shot. If the image is too bright, you can either increase the shutter speed (i.e from 1/100 to 1/150, or decrease the aperture (i.e. from F1/8 to F1/10). Be aware that most cameras can not have a faster shutter speed than 1/250 s when a flash is fired. I have noticed that it is often better to have the picture a little bit overexposed. You can later adjust this, if needed, in a computer program (i.e aperture, photoshop, light room). Once you are happy with the exposure, you can fire away. The photo below was made in 5 minutes