That's the one.
I was originally just putting it in a spreadsheet and trawling through a load of readings every week or so (never got OCR working).
But now I've got it all in a MySQL database where I've got a little form that checks the last row in the database, then checks the date and displays the image for the next reading I need to enter, once entered it calculates the usage that day and the cost that day and adds them to the database. Data stored is - date, total meter reading, daily usage, cost. When it's up to date it tells me there's nothing more to add.
EDITED: 23 Feb 2016 10:54 by ANT_THOMAS