My kitten Lydia us roughly 5 months. I've been working to get her litter trained for sometime now. At first she was doing great, but the last month she has not used her box, but maybe 3 times, so I keep finding little unwanted surprises behind the couch. =/ whenever I find them I clean immediately with vinegar water. Last night my husband found one that I hadn't seen yet. *I've been working hard to keep it cleaned before he sees it. He said if it happens again she's out. So how can I get her to use her box all the time?