Seth says:
The easiest cheapest way to dramatically increase sales is to:
Call your customers. Or write to them.
“I know that times might be tough for you. Is there anything I can do to pitch in and help?”
You’ll end up doing a lot for your customers. Which is a wonderful privilege. Even for these that don’t reciprocate.
I [...]

If you are a sales professional or want to become one, or if you are looking for a new sales job, you will face one of the toughest interview processes of any job seeker.