What to do?

Mom is talking about getting me a new brother or sister.
I'm not sure I like this idea! She has watched other dogs for short times and I have tollerated them. But full time? I don't know about this. I tried to give her hints about how I felt after they left I wouldn't touch my toys that the others played with untill she washed them!
I do like my play mates though but they go home!
It's nice having her home all day to myself. What do you guys think?
Should I share my mom or put my paw down and be an only dog?

My Usual Day

I am pretty spoiled! But I'm not rotten!
I get up with my dad and he gives me a snack! I am told this is to keep me from thowing up but, I know it's because I am the best dog!
Then I go back and snuggle with my mom in bed untill she decides to move. I don't let her stay in bed tooo long. Then it's time for breakfast and my morning outting. With the snow they shovel paths for me in my back yard it's a new maze almost every day! Woohoo it's a blast. I like goning in the deep snow anyway it makes mommy crazy!
When I come in she tries to catch me to get the snow off of me it's my favoriet game of the morning! I eventually let her get me then we do my hair so I look like a princess again!
Then if it's a good day I get to go for a car ride while mom does someting called errands.
Then we get home and I get to do my favorie thing and sit in my window seat on my pillows and watch the cars go by.
When i'm bored of that I take a nap. Then we go up stair to chek in on my Grandma and my best friend Clarice (she's a cat). I get to run around and play with her if I want and my Grandma really spoils me.
I get to do what ever I want! Mommy doesn't know half the stuff Grandma lets me do!
Then Grandma calls downstairs and lets mom know I'm on my way!
She opens the door for me.
I usually start waiting for daddy to come home around 4:30 pm - he works too much! Then when he comes home it's time for dinner!
Then we play for a bit and some one of my humans has to let me out
to play in the snow and for a bathroom break. Mommy and I play our can't catch me game and then it's time for bed!