My late DM only sent cards when she received them and then bemoaned the fact that she got fewer each year.
They are nice but it does add up if you send to all the people you know.
Having just spent £40 on postage I sympathise..
A nice email with a personal greeting might do.
Son on rebound - wants to marry
Things you find stressful that other people don't notice.
New house and a sloping garden