Hello everyone!
I am a new yorkie owner (Molly is almost 7 months old now, I adopted her at 6 months) and I absolutely adore her! Anyway, I just wanted to recommend a great dog backpack one of my friends discovered. It's called "
Argo Action Petpack Airline Approved Carrier." I have a black/gray one that I found online. It's made by a company called Teafco. It has double mesh so she can see out but people can't tell that she is inside unless she is moving around in it. The bag is light and supportive and I've taken her on long flights in it. She weighs around ~5.5 pounds and can lay down and sit in the bag. I had another bag but it hurt my shoulders carrying her around. Then I left Molly alone in it and she chewed through the mesh anyway (newbie mistake on my part!). It's great for sneaking my dog into places because I hate leaving her home alone since I work full time! 
Probably the only drawback is it's not the cutest bag available but I prefer comfort over cuteness!
Now if only I could get house training down...
