Lithuanian here.Most people would kick you out if you wouldn't take your shoes upon entering their homes. However I'm yet to see an office where people would walk shoeless( to have more comfortable footwear for office use only is acceptable,but no slippers).. Also carpets or carpet flooring isn't something one would normally would see in an office,as opposed to, let's say Britain.Most offices have either tiles,laminate or some other, easy to clean surface. During Autumn or winter,people do clean their shoes well enough before entering premises,so no snow or water is brought to the office,as not doing so is a big no no and is frown upon in most cases.