Just cannot see the sense in having things like that in a van, when window cleaning is what its about.
Was pointing out that in 21 years of running a buisness i have never used half the stuff you metioned, and to be honest dont want to.
By the sounds of your posts, i would just stick at either traditional or wfp window cleaning and if ever the situation arose then sort it.
99% of customers dont want to come and look inside your van, they just want their windows cleaning.
For one reason or another you mention, staff problems - if you operate your business correctly then on alot of occasions the better window cleaners will start asking you for jobs, that way you dont have to stress, pay one of them alittle bit extra to sort the bulk of the work out - leaving you to get stuck in and manage it