Without calls to action, you won't get any leads.

As a marketer, you should be placing calls to action all over the place - in your emails, on your website, in your blog articles, in your ebooks, in your presentations, in your videos... anyplace you can think of.

Here is a fun example from the bathroom at a nonprofit where the HubSpot marketing team did a volunteer project.  You are presented with a call to action while you releive yourself.  Crazy?  Maybe.  Effective?  Probably.

What's the most remarkable place you have seen a call to action?