Breaking tasks down into smaller tasks. Getting help where you need it, whether it's having a secretary, or an accountant, or an automatic bank teller, or a good filing system, or a home computer, getting help where you need it. Maybe applying external limits on your impulses. Or getting enough exercise to work off some of the noise inside. Getting someone in your corner to coach you, to keep you on track.
Medication can help a great deal too, but it is far from the whole solution.
The good news is that treatment can really help. Let me leave you by telling you that we need your help and understanding. The main point of the talk is that there is a more complex subjective experience to ADD than a list of symptoms can possibly impart. ADD is a way of life, and until recently it has been hidden, even from the view of those who have it. The human experience of ADD is more than just a collection of symptoms.