I did hospital car for over 10 years and made many friends with people over this time. I have lots of people who live alone, and some I know do not have any family close so I want to send them a card, so they know they are not forgotten. If I am in their area I would hand deliver but have moved since then so some with be posted , second class of course !!(I am yorkshire, after all!) But something I do for birthdays as well as christmas. Many of my friends are gardeners as am I, so I choose a packet of seeds to put in the card. Doesnt weigh anything - no extra postage. So for non or beginner gardeners I would link it to something relevant to them. e.g. Know you like blue so thought you would enjoy these cornflowers, or a more experienced gardener, thought you might like to try these freesias. These come as a nice surprise and if they then plant them , they have the pleasure of the flowers to enjoy in the summer. I have even in the past been cheeky enough to check how the plants are doing, with local friends , and if they have done well, I have asked if I many have a few plants as I did a stall a couple of times, once for the RNLI and Cancer research. I think that this is very much a Win/Win situation. Pleasure to feel remembered, nice little surprise, and it reminds you of the giver in the summer too.