Few people remember that back in the 80's, there was actually a period where Garfield explored and created. There was a time when I read a lot of comic collections, and since our library had a good stock, I've read every Garfield strip published before 1996 or so several times.
But I had forgotten about these:
The navigation isn't working for me. There's a copy on YTMND here.
One storyline, often referred to as the Garfield Halloween Strips, is unique among Garfield strips in that it is not meant to be humorous. It depicts Garfield awakening in a future in which the house is abandoned and he no longer exists. Fans hold various opinions and theories on the meaning behind this enigmatic storyline, varying from A Christmas Carol like interpretation to a theory that Garfield is actually dead or dying, slowly starving to death in the abandoned household.
I don't know how David Malki missed this.
Points to Ultraman on Livejournal for reminding me these strips existed.
I'm having trouble getting to them on the UComics page, but if anyone can get copies of them, please post them here.