mainly due to a bit of a back log - unpredictable weather etc. Don't want to let the customers down but can't perform miracles either, mix that with a few late payers and I'm actually feeling a touch of stress. Is this normal? (it's my first winter)
anyone else feel the same way?
Tom
Not saying that I'm stressed but there are hand and footprints across my ceilings

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It's always a good idea to have some money put aside for any time - not just winter. Or, at worst, at least have access to a bit of emergency credit.
If it's just about doing the work rather than about cash flow, well no point stressing about stuff you can't change. The customers know how it's been. I don't think any of them would seriously expect their window cleaner to be on time after the few weeks we've just had (and some further north are still having).
Any customer that ditches you for not putting your neck on the line in the ice is a customer who isn't worth having anyway.