A fun project to work on over time with your daughter: Look for different costume jewelry and pins at yard sales and "redecorate" a plain mirror. Every time she looks in the mirror she will remember the time you both spent creating it!
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!