It's been one of these days, went to open the (new) greenhouse window and the window frame fell apart. Then decided to try and screw together some of our new metal shed only to find the pre drilled screw holes were too small for the screws they supplied. Undaunted I got the ladders from the garage to get up and replace the smoke detector battery only to find when I finally wrestled it from the hall ceiling that it said 'non replaceable batteries'. That did it, poured myself a large glass of wine in compensation.