Need a excuse to say hi?

As I am implementing CRM, we wanted to create 'touch points' with existing customers to develop loyal relationships. As we aren't currently a proactive sales organization, we aren't really sure where to start. But this article at Marketing Profs has some good, but basic ideas:

The 'Marshall' Plan (or, Customer Aftercare)

• "Thank You" letter
• Letter from "Mr./Ms. Big"
• How did I/we do?
• Happy anniversary
• At random, customer appreciation letter
• "How are we doing?/How have we done?" survey cover letter
• Birthday cards
• Hand-written "Congratulations" cards
• Thanksgiving letter

Now I can't say I would use all of these, but I especially like "Letter from Mr. Big". One of our loyalist customers was so partially because he had the phone number for our president.