We've lived in this house for 9 months and my poor rustic porch remained without curtains and sorely lacking in TLC.
I decided to give it a little shoestring chic treatment. During a recent linen closet purge, I found an old sheer swag. I cut it out in simple squares (hemming the raw edges), tied some ribbon around it and I bought some pretty glass beads to sew on the ends of the bows. Total cost: $3.50 and 45 minutes of my time for 3 windows.
It's a little "country" for my tastes, but we live beside a cow pasture and my kitchen still has a sickly tractor border (ick!), so it kind of suits. I like it.