Spam is good for something, after all. Two things in my case: First it gives me a nice flow of test mails so that I can verify that my servers do work as intended. The second use is that every morning when I get my first cup of coffee, skimming the spam&trash mailbox reminds me of recording my weight, which I check every morning before showering. Usually I have forgotten to write it down by the time I've finished doing my teeth, inserting my eyes, getting the coffee etc.