one thing is Alcohol is highly flammable, so i think you should worry if ever those stuff come in contact with heat.

in order for alcohol to be a proper disinfectant, it must be left with the item for a certain time period. For ethyl alcohol, 20 minutes contact time is consider a proper disinfection period.

Disadvantage about this is, the alcohol will evaporate before the 20 minutes is up. another no is alcohol can attack and stain certain plastics.

Isopropyl alcohol isn't an effective disinfectant, its main use is for skin wipe to remove organic debris from the site of wound or injection.

one thing, you don't want your cages becoming TOO clean. a daily cleaning routine will tired you down. the old spot cleaning + weekly bedding + weekly tub wash is already a great cleaning regime.