Online meetings:
When using Zoom for the first time - switching between one big picture, and lots of little pictures (because not everyone found this easy).
Cats:
I've written about the symptoms/treatment of a rare case of Feline Perforating Dermatitis. Basically, scurvy.
Sailing:
Articles written for Y&Y website - including several on helping sailors with a disability
Saving the 'Swallow' dinghy from the 1974 film of Swallows & Amazons so YOU can sail in it!
Opening things to fix them:
Opening electric piano keyboards - Roland HP102e and Roland HP-5000s (tells you which screws to undo)
Disassembling a Lego 'maxifig' head/arm block without damaging it
General:
The most useful tools/devices I have found, that enhanced my life
Computer programming:
How Amazon SES message identifiers can be found in SMTP headers (plus with a Gmail filter)
What I have learned about Phonegap (back in 2012).
How to use GCM for iOS apps without using the technologies Google insist upon.
Introduction to multi-dimensional databases (OLAP).
Simple guide to writing MDX queries for OLAP databases.