My grandma taught me this many years ago. Refreshing towels I use this trick all the time since I noticed my towels smelling funky. It works! - Over time, towels build up detergent and fabric softener, leaving them unable to absorb as much water and smelly. Recharge them by washing them once with hot water and 1cup vinegar, then a 2nd time with hot water and half cup baking soda. This strips the residue and leaves them fresh and able to absorb more water again. Works like a charm!
Arm pit stains...I have actually tried this and it works great! I use about 2T of baking soda, 1t of Dawn, and about 2t hydrogen peroxide (for those who need exact measurements!). Make a paste then rub onto the stain. I let it dry overnight the first time, the second time just threw it in the washer, both came out clean. Used on shirts other than white to