Would you up your prices if you haven't for 10 years but you're still able to make the appropriate daily target? I'm thinking perhaps I was "well priced" back then and now normally priced.
i dont understand why you wouldnt put your prices up?
you're margins are not the same as they were 10 years ago. a pint of beer costs me about £4.80 nowadays...
you need the profit from the cleans so i would imgine your prices should be raised by about £3 if not raised for 10 years. imagine what a difference that would make to your business, or your own savings or for your kids savings... whatever really. if you have 100 customers that would be £300 extra each month, £3600 a year...
if its the admin job that is putting you off get a but of admin support off a mate who is good at this sort of thing, or their wife, or kid.. thats what i do, just having someone in for a night focusses my mind and if you pay them a bit of cash, you get it all back the month of the price rise so its a no brainer.
also if you were high priced to begin with, you have a bunch of custoemrs who chose you not on the cheapest price, but on your service. to be frank, a lot of them will think you're nuts for not putting your prices up. its the way of the world.
good luck!