all my boys have fleece lined cages and everyone has at least 1 litter box, some have 2. A couple of them only use the litter box, but most also pee on the fleece. i also have a marble tile in my cages about 12 x 12 inches that i put where their food & water is.
Each night i take out all the hay that has fallen, the shavings that have been kicked out and i pick up the hundreds of poos.......usually by hand. i wipe down the the tiles and wipe off any pee on shelves, since i have 1 boy that does that. i refill thier food, water, hay, new shavings & give them their nightly treat.
Then about 1 time, sometimes twice per week, I remove everything in their cage including the fleece, vacuum or by hand remove & debris on their metal pans and wipe them down with an organic pet safe orange cleaner. replace with new clean liners and everything fresh. and start over!
i have 9 boys and i can not get this process under about 30 minutes per night, usually 40 - 60 just in nightly maintenance and when i replace everthing it takes almost 2 hours, so i usually split it into 2 nights. 2 FN towers one night, then 2 the next!
also my chins are out in their play area during this time, which is about 4 feet behind me, so i keep my eye on them.
and i shake out my liners very very well before i put them in the laundry. i use detergent and vinegar.......no softner. warm or hot water. extra rinse cycle.