If it comes in the mail, that means they really cared.
1. Remember ahead of time, as the post is 3-5 days.
2. Buy the card.
3. Write instead of type. Extra points if its good loopy cursive as the young kids today can't read it.
4. Find a stamp.
5. Drop it in the mail.
Of course, if the person is over 60, then they probably buy boxes of cards 50 at a time, and have "forever" stamps already affixed to them. Then they have a physical calender that is 20 years old with all the birth dates of everyone they know and the current address and phone # and now email address scribbled on it. My mom has everything in her phone and synced with Outlook and reminders set for every birthday. She can't part with the paper calendar. She does not trust the electronics, and has had enough hard drive failures and viruses for me to understand why.