Several reptiles means several incompatible routines sharing one house: the iguana eats greens daily, the snake eats weekly and must not be handled after feeding, the gecko's humidity peaks at night, the frog's water cannot wait. Holiday cover fails when it is invented the night before a trip, because the sitter inherits all of that complexity at once. It works when the cover is simply the ordinary system, written down and practised, so a trip changes who does the routine rather than what the routine is. The sitter should be able to run the whole collection from the paperwork alone.
Write the one-page routine while life is normal
For each animal, keep one page: feeding days and foods with the supplement rotation, light hours, the temperature and humidity ranges that count as normal for that enclosure, and the oddities a stranger would misread — the snake that refuses food in shed, the skink that always hides after eating. Update the page whenever the routine changes, as part of the change itself, because a page updated in the ordinary week is accurate in a way a page written from memory at midnight before a flight never is. Photograph each enclosure's thermostat and timer settings too, so 'back to normal' is a picture, not a description.
Automate and stock so the sitter's job is small
Every task you automate is a task the sitter cannot get wrong: lights on timers, heating on thermostats, misting systems with reservoirs topped up to outlast the trip where the species allows. Stock the trip like a feeding week plus a margin — live food ordered to arrive fresh, frozen feeders counted out into labelled daily tubs, spare bulbs and fuses in a named box — and label every enclosure and food container with the animal's name and photo. Leave a short do-not list as well: no handling the snake after its feed, no topping the frog's water with anything but the prepared container beside the tank.
Rehearse the sitter, then set the worry rules
Have the sitter do one full round with you watching, weeks before the trip, because the questions they ask with their hands on the tubs are the ones the written page forgot. Then agree the worry rules in advance: which findings mean a photo message to you, which mean calling the reptile vet whose number is on the fridge, and which are normal and need nothing. A sitter who knows that a fasting snake in shed is fine — and that a lethargic frog or a cold enclosure is not — will neither panic daily nor sit on a real problem.
Hand over access, not just instructions
When the trip arrives, the handover should take minutes: keys, the pages, the stocked shelves, and the worry rules already rehearsed. Rather than leaving a folder that goes stale, share each reptile's live routine digitally before you go — on KinsLe, a Care Pass gives your sitter temporary, clear access to every animal's feeding days, settings and quirks, so the cover you built into ordinary life is exactly what they hold in their hands.