how do you...

How do you make textures and patterns? I haven't found what I'm looking for in the FAQ, so I have to ask. You know like, do use certain brushes, colors, ect.? I use Photoshop 7.0 so I was looking for a tutorial on this subject. Haven't found any yet, so I was hoping someone here could show me where one is. I'd be so happy if someone could help me! Thanks in advance! ^^