Thank you ecards are a great way to show appreciation for a colleague or coworker. They are easy to send and can be customised to include a personal message. Plus, they're a fun way to brighten someone's day. digital thank you cards are a great way to show your appreciation for someone's hard work. They're easy to send and can be customized to fit the recipient's personality. Plus, they're a lot cheaper than buying a physical thank you card.