At home I sometimes go multiple days in a row without showering and just revel in my own filth
Do you have a specific reason for doing this type of thing?
I'm sick of taking showers, I can't stand getting out of the shower when it's cold.
I understand, I dislike that feeling as well.  However, people are expected to keep themselves clean and maintain their hygiene.
My mom said the same thing. She's been saying want "I should stop, as people can get sick" over and over.
Maybe there is something you can do to avoid the cold feeling of getting out of the shower. Try leaving your clothes in the bathroom and closing the bathroom door. This will keep the warm in the room and putting your clothes on right away will keep you from feeling super cold.