Four lines, fixed shorthand, no essays
A log survives only if it is almost effortless, so strip it to the four things that reveal most health changes early: what went in, what came out, and how he seemed. Give each a shorthand you never have to think about. Appetite: a tick for a finished meal, a half mark for a partial meal, a cross for a refused one — noted per meal, not per day, because skipping breakfast but eating dinner means something different from refusing both. Water: an equals sign for normal, an up arrow on days the bowl empties noticeably faster, a down arrow when he is barely drinking. Toilet: normal, or a word or two only when it was not — loose, straining, extra night trip. Mood: two or three plain words such as bright, quiet, clingy or restless. Anything you write in full sentences daily will be abandoned within a fortnight; symbols will not.
Pick one moment and one home for the log
Attach the log to a moment that already closes the dog's day: filling tomorrow's food container, the last toilet trip, or putting his lead away after the evening walk. Thirty seconds at that point captures the whole day while you still remember it. Keep the log in exactly one place — a notebook that lives by the food bin, a note on your phone, a whiteboard by the door — because a log split across scraps is worse than none. If several people feed and walk the dog, the log is where their observations meet: the person who saw the loose stool and the person who notices he skipped dinner are often different people, and neither alone sees the pattern forming.
What the log is actually for: spotting drift
A single odd day means little. The value appears across a week, when you can see appetite sliding from ticks to halves, water creeping upward, night toilet trips becoming regular, or mood flattening from bright to quiet day after day. Those slow drifts are precisely the changes owners struggle to describe at a vet appointment, where 'he has not been himself lately' is hard to act on, while 'half meals for five days, drinking more for three, up twice in the night since Tuesday' gives a vet something concrete to investigate. Review your own log briefly once a week — Sunday evening works — not to hunt for problems but to notice whether the symbols are telling a story you missed day by day.
Add a temporary fifth line only for a specific reason — recovery from illness or a food change, for example — and drop it again when that episode ends, rather than letting the log grow into a ten-minute project.
When a log line should become a vet call
The log also tells you when not to wait and watch. Refused food for a full day in a dog who normally eats eagerly, drinking and urinating far more over several days, repeated vomiting or diarrhoea, straining to pass anything, blood in stool or urine, or a mood change to hiding, panting at rest or snapping when touched should move you from logging to phoning the vet, taking the recent log with you. Puppies, elderly dogs and dogs with known conditions deserve that call sooner, after a single clearly abnormal day rather than several.
Keeping the log where his records live
A paper notebook is easy to keep and easy to forget on the day you need it, which is usually the vet visit where the pattern matters. Store the weekly picture with the rest of his health information so it travels with him to appointments, boarding or a sitter's care. You can hold that daily record in KinsLe alongside Pet Passport, keeping appetite, water, toilet and mood notes together with his other records in one portable packet.