I would like a plaid shirt. Not red. Not more than $100. Longer -- tunic length even. And I don't want a men's shirt. This is a much more difficult task than one would think. Here are some options:

This is a great, unexpected option from
Nordstrom. The cheapest of the whole lot at $34!
Urban Outfitters of course has a few options, and this one has an interesting contrast at the top.

Not just for jeans,
Levi's has a great flannel plaid with princess seams.

Not sure about the cut of this one from
Abercrombie & Fitch, but they do have a good selection of non-red plaids.

This one is
red, but I like the styling so much that I may be able to overlook it.

This one from
American Eagle Outfitters is especially cheap and cute!
You know what I'll be looking for this weekend.