I seemed to spend a lot of my 6 hours of child free time today making a casserole for the weekend (obviously with breaks to read the papers online, check Facebook, check out the sales I have been emailed about etc etc). Tasks can easily be persuaded to stretch and fill up my day when I want an excuse not to do something else (like tidy up the spare room which really, really needs doing) - it's Classic Work Avoidance Tactics to do something else entirely so you look and feel busy but don't get to what you should really be doing - but making beef casserole and clearing up afterwards should not really have taken 3 hours.