I work in a small office, just four of us. One of my colleagues is extremely messy, and this is particularly irksome in the kitchen area - dirty dishes left for ages, spilt food, cruddy bits in the sink, etc. We discussed "keeping the kitchen clean" a few weeks ago in a sstaff meeting - not pointing at her, just generally, and I think she's trying a bit harder but basically it's still crap. Her line manager is very reluctant to tackle her about it. WWYD?