Suggestions for a budget backgroud

Could you please share any suggestions for an inexpensive setup for backgrounds .... I would like some variety of colors, white, black, gray, etc.

Also, can someone briefly explain the deal about a bright green background? What is the advantage of the green for changing backgrounds in editing?

Go to your local fabric store (we have JoAnn Fabrics in Ohio) and buy white muslin fabric in whatever size you'll need it. Buy some Rit dye and color the fabric to whatever color you want. It's very cheap and very easy.

The advantage of a green screen is because being a uniform color that is very rarely used in clothing, it makes it easy to select it all in editing software so that you can replace it with another background.

Buy a white, and black background, and get colored Gels and you can make you back drop any color you want.

a roll of 'seamless' paper is usually around $25 or $30, and is usually re-useable for at least 5 to 6 shoots, depending on how well you take care of it. If you can't invest $30 for your photography, you probably should look into a less expensive hobby.

Get yourself a simple background support system, a roll of white paper is not that expensive. For black I bought a few yards of black velvet, I prefer it to paper (other fabrics are not as good, but can work with some pp). I also have a pile of different fabrics ; I rarely use them for backgrounds, but often to bring a bit of color in full body shots with the white background. I've experimented a bit with gels, they're interesting if you want a less even background.