If you use #GMail, #Google keeps records of everything you buy, even if you delete the email receipt, and even if you didn't buy the product from them. Here's metadata from my takeout showing price, delivery address, description, vendor, etc. #privacy

If you use #Google Photos, there's a non-zero chance that there are secret, yet public URLs attached to your photos that allow un-authenticated access to every picture in your account. Mine did, and I tested the addresses in incognito and tor browsers and they worked. #privacy