I'll go up to five. It's possible for me to go longer, but I don't want to offend people when I go to work.
It really does feel like way too much effort. What's the point most of the time. Who is going to see me, who cares.
Plus it saves money and water. My water bill was $10 less this past month!
Oh yea, if I finally do get myself to shower, and if I've been laying in my own filth for so many days, then I'll have to change my sheets too. I can't be clean on dirty sheets. More work...