Currently fine and happy with doing 5 normal houses a day for 4 days a week on average. Total work day @ 20 per month (ish).
Might have a gander at a backpack if I have a bit of spare dosh in the new year though, could be perfect for of my current jobs.
3 months - have a proper plumbed in ro > di > static tank. Still working from barrels.
6 months trade in my car for a 7 seater which can handle weight of gear, like a mitsubishi, nought fancy. Work half from built in tank and half from barrels and trolley.
Oh yeah, and I'm launching a smallish local special offer ad to attract a few newbies to compact the rounds, but have learnt to charge a proper rate for those who just want 1 off's. And I have absolutely no issue with one off's, very therepeutic and satisfying for me.
Once I've run the 4x4 for a couple of months, I'll take stock and consider renting a little unit and buying a proper van. Ultimately for now that's about it,; seperate the window cleaning from the home life as much as possible with the exeption of phone calls, I like taking calls whatever the query.