I have an email address for personal use and another that I give to businesses. I check both, but I have it divided this way so that the "spam" emails go to the one I don't check as often. Inevitably, my personal-use email shows up on spammers' radar, so I change my email address and start over. It does slow the spammers down, though. I've been using the current personal email for about four years now. Within a year, I think I'll find it necessary to change, but this is longer than I made it when I only had one email for everything.
Q: How many poets does it take to change a light bulb? A: 1001...one to change the bulb, 1000 to say it's already been done.