I enjoyed the reference to Watkins, Jewel Tea, etc. Watkins is located in Winona, MN and still sells several products.
My paternal grandfather and his brother-in-law sold Watkins in the late teens of the last century. Yes, they used two horses and a wagon!!
Hopefully, this young woman will have the opportunity to have some of these stories written down, along with photos of the storytellers.
Our world has changed so much in the last forty plus years since I got my home economics degree. Home economists in the late 1920's to mid 1940's used to go door to door with lamps and light bulbs, show women how to use a range, and had the duty to try to build up the use of electricity. When the changes in consumption came to a head in the early 1970's, our jobs were to speak about energy conservation.
By all means, please work in safety as a priority. There are several good suggestions on this thread. Have fun:-)