Just saw this article about "pajama jeans"--basically lounge pants styled like denim.
"The aptly named PajamaJeans are made of a mixture of cotton and spandex with a gray jersey lining to provide a snug and relaxed fix, complete with pockets and rivets to give the illusion of trendy denim."
I can't really tell what they look like from the picture, but I kind of like this idea! Immediately when I get home from work, I change into sweatpants and look like a total slob. This jean/sweatpants hybrid seems like a more presentable option. They're $40. I have no reaction to this price because my reaction depends so heavily on the pants. I can't tell if you would actually want to wear these out of the house, in which case $40 seems quite reasonable, or if they should be relegated to the house, in which case, $40 seems like a lot for cute sweatpants. Either way, I am very intrigued. Anything that would let me wear jersey pants out of the house is going to get my stamp of approval.