As a network administrator, I got TONS of spam on a daily basis. We are talking hundreds of messages. I finally got the spam filters tweaked to the point that I was only getting around 20 unwanted messages a day. Any tighter and I started losing messages from customers that we wanted to get.

I find myself on new lists all the time. Unfortunately, about all you can do is keep playing with the filters and unsubscribing from the ones you can.

Better enforcement? Many of these spam factories are offshore and can't be touched.