What kind of plant is Robert? How old is he? Love him!!

@Carin I threw the tag away and did not recall the name. My young son suggested we just call it "Robert". R was an impulse buy at my local rural grocery. We've had him between five and ten years. Just light watering and regular "hair trims" to keep him from getting lanky.

In seeking an identity on the net, I finally came up with it: Rhipsalis - mistletoe cactus.

I had houseplants, but my cat ate them down to the stems. I'm just glad I didn't get anything harmful.

@OuzelWoman Yes, very true. I had a cat the learned the hard way not to eat a poinsettia. He recovered but he had a rough ride.

I can mostly just grow cacti, but also splurged & bought a dracena palm that was too tall for them to reach the foliage at the top. & I have a hanging plant.

@Carin I don't trust my kitties around anything that they think they can chew on. They are too smart for their own good.

Your first and last photo are similar to two of the six I have currently living in the insulated breezeway. (room between garage and formal dining room) The breezeway has sliding glass doors to the outside on one side and and two large windows on the other. Aside from two windows in the house, I really don't have southern exposer windows as the double garage occupies most of the south of the structure. When the previous owners designed the house the built large stone and concrete planters into the stonework of the larger fireplace in the main level living room and a massive stone planter in the foyer. Despite six massive (nearly floor to sealing) windows in a bow array in the living room and a large array or windows in the formal dining room, any plant placed in these planters would soon die as they never got enough light. Your plants look better then mine.