Webpage Popups are irritating, yet they get you best conversion rates. Now, add this conversion machine with a Lead Management Tool and you will have best sales pipeline generating tool. It's effective, it's easy & it's free.
I started https://scrap.me as a soloprenuer though we are still very far from reaching 1M ARR but we are doing good. I have started this tool as a helping tool for my other venture but launched as a seperate product after our customers started to ask about the product.
In initial days start as a solo entrepreneur that way it gives you freedom to work, better cash flow and it let you judge your dedication towards your venture.