
We've had an offer accepted on our house and are about to start househunting in earnest. This will involve massively increasing our mortgage (and therefore also massively decreasing our OPs). How would you like to update the spreadsheet when it comes to that point? Is it possible to change my target partway through the year? Or should I drop out of the challenge and rejoin next year (I don't imagine it's going to be a speedy process!)?