Years ago I wasn't too careful with my email address. After using the same accounts for some time and eventually moving on to something a little more memorable

Years ago I wasn't too careful with my email address. After using the same accounts for some time and eventually moving on to something a little more memorable (presentable, etc.) I decided to try and take care of it by not posting it anywhere without at least minimum obfuscation, and not signing up for anything I didn't explicitly trust. Four years on, and my spam folder gets at most 2 messages a month. A couple are some stupid pharma-spam, but most of them come from when my grandmother's email list got scraped. So hey, it's not bad. I hardly even have to check the spam folder for false positives, and may even turn it off completely.