Make money with greeting cards. There are five online platforms that encourage artists, designers and wordsmiths to create greeting cards that they’ll produce for you.

Making your own business cards online for free typically involves using a template provided by a website, such as the Printree, BizcardCreator, Vistaprint or Google Docs websites.

To make our Valentine's Day card, we'll be using Adobe Spark Post – a smart browser-based design app that makes it easy to create cards, invitations, posters, flyers and social media posts.

Another online printing company, Moo Prints, is a bit pricier than Vistaprint (starting at about $20) but offers better quality. Moo Prints has about 230 modern-looking business card designs to ...