J.S.
Sounds like you're doing a good job to me! You could go get more playmats for a scenery change for her (and you). My little ol' opinion is that you need to do both...spend quality time with her and let her be by herself for you to do your things. That way she won't depend on your for her entertainment. I'm sure a lot of people have already said this to you, but it's true what they say about enjoying the infant stage. Pretty soon they'll be talking back and never sitting still (like my 2 1/2 year old).
If I had to do it over again, I would have tried to get all the neat baby toys...different bouncers, playmats, jumperoo,... And don't worry about your house being messy all the time. That's one thing that really bothered me when I had my son, and I had to learn to let it get dirty so I didn't waste my time cleaning when I could be holding him. :)