I can just imagine all the things mouldering away in the OP's rucksack
After a day walk every single thing I wore gets washed and dried the next day, although I must admit I keep forgetting day after day to clean the mud off my boots.
With backpacking my stuff has to wait while I enjoy three or so days on a campsite before I return home, but I do hang my invariably wet little tent and my waterproofs out to dry on anything I can such as fences, tree branches, car or big tent, while my boots partially dry in the tent 'living area'.
I value all of my equipment so highly that the day after I am home everything is washed or cleaned and put away for the next trip