Sleep.

How good is it! I think it is one of the most important things to get right. Cos you can get it wrong. All week I've felt a bit draggy, and every night my attempts to be in bed by 10 and have 8 hours unbroken sleep were thwarted. Sometimes the heat, sometimes the ponytail headache, sometimes the sewing obsession, sometimes an engrossing TV show. Last night I prepared carefully: relaxing shower at 8, before I got too tired; lemon myrtle tea and bible at 8.30; Erast Fandorin novel at 9, unconscious by 9.45. Ha-HAAA! High energy scootering to work in the morning!