Earn commission
If you are caring your personal finance, then this two words should be the sweetest: EARN COMMISSION
It’s a great thing to focus, to sell other’s people products. You only need to to what you do best (which means make traffic) and monetize your traffic. If you want to sell your own products, you need to bother with:
- logistical things
- banking issues
- returning money
- marketing
- financial things
- setting up infrastructures, etc
Is much better to earn commision. Sell things that don’t belong to you, acting as a sales force. Sale and take the money. If the payments are recurring, it’s even better 
And if you are earning commision also from 1st and second tier, it’s even better
