@AbandonedAmerica I've always thought there's a billion dollars to be made by some research junkie to write a whole series of "this is the book you will want to have on you if you accidentally find yourself transported to [insert decade or century here]" books.
For anything more than 200 years ago, it would mostly be survival tips, and how to live comfortably and avoid getting burned as a witch. For decades in the 20th century, it would mostly be stock and patent tips.
This is your book then. Just translate it from German
https://www.rowohlt.de/buch/kathrin-passig-aleks-scholz-handbuch-fuer-zeitreisende-9783737100854