Weird! GE had a working toaster by 1909... you'd think someone would want an outlet for that, alone!
The venerable KitchenAid mixer that everyone's mother owned was on the market by 1919, and the first electric clothes iron beat that by almost 40 years (1882), although they weren't really popular or commonly found until the 1920's.
The older part of my house (1770's addition) was originally wired in two large circuits that covered the whole house. Most of our lighting and living room outlets still run on one of those ancient 15A circuits, which forever frustrates my wife, given most modern clothes irons draw nearly 12A on their own.