Maimee:
Leaving highly calorific grazing/snack foods everywhere will really make her pack it on. Think chocolates, truffles, caramels, crisps, sweets, etc. Leave them at her bedside, by the sofa, on the kitchen table - anywhere she stops to be for significant amounts of time and will end up mindless picking at what’s nearby. It’s amazing how much chocolate you can absentmindedly eat even when you’re not hungry! And no cooking involved. 😉
Hahaha, that's what will be called unintentional weight gain.