Last year I bought these sweatpants from Old Navy and wore them a lot. They are cozy and warm to just wear around the house. However, with the straight leg, they can be nice enough to run errands in as well.
These are regularly $24.99, but today they have 30% off making them under $18. I will admit that I found them when they were on sale for 50% off. I figure they will have higher percentages off as we get closer to the holidays.
I loved them so much that I purchased them in black and a blue color they offered last year. This year they have a light grey that I may add to my collection. It is a way for me to feel relaxed but not be considered sloppy by my husband.
So if you are in need of some lounge pants, I recommend these. If you have a teenager, then you may want to add them to your list of gifts for Christmas.