Ever Since my FIRST DATE!!! lol
I started out selling security systems to businesses door to door in my early 20's.
Then I moved up to selling Life Insurance on an old Debit Route where I either had to go in person to collect the "Weekly Premium" or the policy holder would mail in their payment book with the payment. I would then mark their book and then "I" had to pay the postage to mail it back to them.
I then sold both Kerby and Rainbow vacuum cleaners door to door.
Then I went back to insurance and sold Life & Health products.
I sold fans at Dan's Fan City for a while.
I sold driveway contracts in upscale neighborhoods.
I sold loans for Beneficial Financial.
I started a small Direct Response Marketing company.
Just before I got into Internet Marketing I had been selling on eBay for a few years.
I learned early on in my career that there is ALWAYS a sale made. Either you sell the prospect your goods or services, or the prospect sells you on the idea that they aren't buying.
I've been chased out of businesses, threatened, and even arrested as a possible prowler while out selling. (All in my first 6 months of outside sales!! lulz)
This Internet stuff is a breath of fresh air compared to those experiences.
By the way, for those who think that they aren't a salesperson by nature, keep in mind that you have been selling since you first tried to obtain something from someone or to convince them of something.
Selling is merely the manipulation of perspective.