I have never been great at using a diary - I tend to just remember most things but at school we've started having more things put into the school calendar which is part of outlook then get relevant appointments shared with us. I found it a pain to have to remember to transfer things from one place to another so now just use the computer one. I do treat myself to a lovely notebook where I write my lists/plan out my week etc.
Totally get the moaning about the weather. I went out for a walk first thing, just 15 minutes but I'm hoping to make it a regular habit at least for the duration of the holidays. Not quite sure what I'll do during term time. The sun was out, I had a jumper on but it wasn't cold and I saw lots of people with dogs who all said hello. Back home and the sun went in, it's grey and dull and I put the fire on! Looking for the positives at least the greyness doesn't make me feel resentful of the sitting inside work I need to do!