While we support the green movement in any way we can, sometimes a paper invitation should trump an ubiquitous e-vite: It won’t ever end up in spam and it’s much more personal. If you have a special occasion, hit up Dempsey & Carroll’s flagship on the Upper East Side; the company has been engraving card stock paper since 1878. Combined interior elements of dark wood and mossy green walls conjure the feeling of a cozy library, a perfect setting to build your stationery stock or design special occasion cards. Not sure when to send that thank-you note or how much notice to give for a wedding? The store’s etiquette experts are on hand for style recommendations, invitation wording and guidance for penning appropriate thank-you and sympathy notes.