I went thrifting yesterday specifically to find some sweatpants for when I'm doing yard work or diying mainly for comfort. During my search I came to the conclusion that 'sweatpants' have been exchanged for leggins or what they are called now 'slicks' in thrifts store (not sure about Goodwill, didn't extend my search that far). I learned this from asking an employee in the men's active wear.
At another thrift store, determined to find 'sweatpants', after thumbing through the isles of women's active wear, I found three pair of 'actual' sweatpants, two were discounted 50% which was $5.00 a pair. I was very pleased knowing that I would not have found one pair for the cost of three in retail stores or online.
During my four hour excursion between the two stores I did find other useful items mainly for my granddaughters when they are out of school for the summer. Games that I use to play outdoors. I'm always surprised when I come across items that remind me of 'them old days.'