For doubleweave, you can consider a single dark/light pair as the smallest number of threads in a pattern/background choice.
What's the best way to handle floating selvedges when weaving twill?
You may be surprised by the fibers that are available to you locally, in your own fibershed.
Read a weaving book or a good article, visit a weaving exhibit at a museum or gallery, hang out with your guild or study group, in person or online. Wind a warp and pick up a shuttle when you can.
There’s no replacing the “Aha!” moments to be gained by watching someone who has woven so long that weaving knowledge has sunk into in every synapse, bone, and sinew.
How do you determine sett for waffle weave? Madelyn can help you figure it out.
Which is the best way to attach to the apron rod? Lashing on or knotting?