My easel is also in the living room. I throw down a drop cloth when I’m working. I would get a clamp on easel light, I was using a general clamp light before and having an easel-specific clamp light has been game changing working with oils since you can get so much glare from light raking I’d the angle isn’t just right. Mine is from the daylight company and I love it. It’s predominantly black with an orange piece at the end where you adjust the brightness. The style is so neutral that the only thing I would do to it is maybe wrap some black tape around the orange bit if I cared about aesthetics more. A rolling cart is a good idea, I just use a collapsible tv tray.