[DianeRay]

I recently went into the living room and found one of the pillows from my bed on the couch. I said nothing and hoped it was my husband who'd brought it down. When I asked him, he said no and he didn't understand how it got there.
I know it's not a big deal, it's just a pillow, but what I find troubling is that one of the kids (14 and 15 years old) took it upon themselves to go into our bedroom, on our bed and take one of our pillows.
What's next?
Already there is a great attitude of "What difference does it make?" "What's the big deal?" and "I didn't think it bothered anyone."
The kids have, in the past, used my toothbrush (I went to take it one morning and it was full of toothpaste goo.) used my rasor (it was full of little hairs) borrowed my guitar without asking.
Can I, and how can I put my foot down and say what's mine is mine.
There's also an attitude of "money's no object." The heat is cranked up, lights left on and the dryer is used to dry one t-shirt instead of putting it out on the line. They've recently used 91$ worth of excess time on the internet and their hand is always out asking for money.
If they at least lifted a finger to help with something... anything, it wouldn't be so frustrating, but they LITERALLY sit before the computer all day.