vacation, there are upper limits to the size of luggage, but not lower limits. You can check a carry-on size bag; no one will make you carry it onto the plane.
What I've done a few times is put my toiletries into a flight bag and checked that through, keeping a rollaboard with all my clothes in it with me on the plane. I figure that if luggage is lost and it's just my toiletries, they can be replaced. But if I check my suitcase that has my clothes, and that's lost on my way to a cruise, I'll be without my things for a good part of the cruise.
Just a thought...