1) Productivity
2) Researching
3) Planning
4) Outourcing
5) Systemising (Is that a word? lol)
6) Maximising - Continually tweak your entire business in order to achieve maximum results
7) Branding

Leveraging - Building an affiliate base, building an email list
9) Building Relationships With Other Marketers
10) Building Relationships With Your Clients/Customers
11) Repeat all over again but always look for ways to improve
There's tons more little things you could break it all down into but those are just a few I think are important.
Niall