Matching the window treatments in the kitchen and dining room is a great way to bring these two spaces together in terms of decor.
I am a huge fan of this design that only covers the top quarter or so of a kitchen window. Kitchens don't typically need the privacy of full curtains and they do need all of the natural sunlight that you can possibly let in.
Of course, there's always the option of having partial curtains or blinds over the window itself and full curtains hanging above so that you can moderate your levels of privacy. This is a good choice in homes where the kitchen and dining areas are combined.
If you have multiple windows in your kitchen/dining area then you can really great a great decorative look using matching and symmetry. The individual drapes around each full-length window here, topped off be their decorative tops, coming together to looks elegantly beautiful.
It's rare to see full-length curtains in the kitchen. However, this is a great choice if you have a sliding glass door in your kitchen area. Would you choose heavy drapes like these or something lighter? I'd go with lighter.
You can always tie up your curtains on the windows so that they don't block the sunlight. This provides a great decorative touch to the room while maintaining its full functionality.
Lace curtains in the kitchen can give a great feminine country feel to your home. If you are the type of woman who loves the domestic nostalgia of a kitchen then this could be the right design choice for you.
Burlap is a trendy fabric for kitchens, giving them an Old World feel. Get curtains to match to modernize this trend.