I'm not seeing the relevance...? If nothing else, these T-shirts can give their final full-measure of devotion as garage mechanic rags...
I've found that buying used bath/hand towels at garage sales work better.
Then take them to the garage.
Do not leave them on the floor of the closet.
If you want to keep them for sentimental reasons then fold them and put them in the cedar drawers.
Do not leave them on the floor of the closet.