I carry first aid, mobile phone, waterproofs, flask ect, mini fridge summer, ladder stopper, warning signs, a box with at least 2 spares of all fittings to replace any part of wfp system, and tools to replace them. Also some thinners for dissolving mastic. Gloves and slip on shoe covers for inside work. Receipt book, couple of pens, envelopes, and palm for George. And the special ingredient to make the window immaculate, ( 20yrs of experience )
When people say what do you put in your water, I say something money cant buy 20 yrs of experience