A lot of the top people are in the same up/down lines. That is where the consistency come from. 

Re-investing proceeds. This is important with any business, thats marketing. This is not always easy for the new or the (often) broke.

I am not new to marketing but am fairly new to GDI, I have yet to establish a DL. There are many things people can use for little or no cost, like the leaky drip technique, after enough exposure people will notice.

Try Safelists try Autoresponders how about Traffic Exchanges ... don't go over board, select a few and try to track what does and does not get you results. Do google searches on these three things for more info as to what they are and how they work in general. If you are wondering if one is better than the other, do google for feedback or end user reports etc. There are many, actually most of these systems offer free plans that you can THEN pay for when/if you get the desired results.

 remember , a rolling stone gathers no moss  -> that is keep moving and you will get things going     well, thats my plan