I have been playing around lately with texture in my paintings. I've only so far tried tissue paper, tracing paper, or coffee grounds to see what type of different surfaces I can make on a canvas, and I've been pleasantly surprised each time.
I found this site called ArtistTerms.com, which suggests a whole slew of different textures which can be used .. ones I had never even thought about.
I am currently trying the one with elastic bands.
I will someday photograph and show you all the paintings I've been doing, when I get a decent digital camera that will show them without blurring =)