I have 2 major pet hates - junk mail (paper) clogging up my mail box & folks who don't use bcc.
Not long before I got broadband I received a 2.9MB flyer that took about 30 mins to download!! I came from a festival organiser asking me & a bunch of other venue operators to publicise their event. So I wrote back politely asking the sender to please use bcc in future. I also mentioned that I was on the lists of 6 of the other organisers & none had mentioned the event, so maybe they also did not like getting 2.9Mb messages. The next email was 7KB & was sent bcc & I still did not advertise the event.
I have placed a mono-maniac acquaintance on my personal spam list due to long rambling emails that include lots of other emails advertising their cause. I printed one message out once & have never seen so many email addresses. Then when I started getting these messages at work from the acquaintance & one of their associates I reported them both to the firewall admin & got their addresses blocked.
I wish general spam was as easy to deal with.
My way of dealing with paper junk is to recycle brochures & return addressed mail plastered with an UNSOLICITED JUNK MAIL RETURN TO SENDER sticker.
I get very few items posted to me as I'm on the national 'don't send' list maintained by the Australian Direct Market Assn, however I do get stuff from Real Estate Agents (another other pet hate). Names of offending companies are placed on my mental blacklist of organisations I will never deal with.