I have two little furbabies now, and I still take them places with me. I put them in the doggie stroller and off we go
I wouldn't want to carry both of them in a carrier on my shoulder....I think for the first 2 weeks, you might get jealousy issues, but in time, the first one will accept the second one, and they will be inseparable. Luckily, Miko took to Emma right away. I think it's important for them to have a playmate to keep them company while you are at work even if it's only a few hours at a time that you're gone. Miko was almost 3 when we got Emma (she was 7 months old when we got her)...