As you might already know i am not into cold calling that much, so i use paid ads for lead gen and then call the prospects. This month we had a smaller campaign, because after landing a bigger client we did not have much capacities to reach out. The result: 53 leads in germany for 11 EUR (which is almost the same amount in USD). This low price came from a great conversion rate ranking. So my question is: HAVE YOU DONE PAID MARKETING FOR YOUR LEAD GEN?

What is the best email subject line that is currently working well? I believe many of us have used 'Quick Question' as a subject line before."