I don’t mind an occasional re-run, but it gets a little more interesting when an artist decides to re-draw a strip.
Here’s the Non-Sequitur from Valentine’s Day:

It seemed awfully familiar, and I soon discovered that Wiley had already done a strip with exactly the same joke (2019-11-01):

(This time on All Saints’ Day, which doesn’t seem quite as appropriate.)
The really weird thing is that Wiley had already done exactly the same strip (but in monochrome) a full twenty years before (1999-01-26):

Either Wiley is completely forgetting his own archive, or he is being unusually careful about getting this joke “perfect”.