This first shot used natural window light, a Canon 5D set at 1/80 at F2.2, 800 ISO and an EF 85mm 1.8 and a bit of levels in PS. .
This next shot is fairly the same setup but in a different room in the house. ( I put my white backdrop paper to rest some time ago). I cant stress enough that everything you need for a great background is all around you, just be creative.
Canon 5D, Ef 50mm 1.8, F2 @ 1/160 ISO 500
To be continued...