Anti Spam tactics

Isn't spam great? every day I get new inspiration in my email for Spamusement (which seems a bit neglected lately), and lately attempts to inspire me via comments on my site have been getting through. Trouble is, I've already got a big willy, my breasts are ample, the cupboard is stocked with Viagra, my insurance isn't up for renewal, and I don't trust stock tips from anyone other than the group of monkeys with typewriters I use as consultants for that purpose.

What can be done

There are lots of things that can be done, and what I'm about to present is intended to complement rather than replace an anti-spam system.