What are some genuinely useful ways to earn Bitcoin in 2026 without buying more?

I've been looking into different ways people accumulate Bitcoin besides simply buying it or mining it.

Some interesting methods I came across include:

• Bitcoin cashback while shopping
• Running a Lightning Network node
• Earning sats through Lightning-based games
• Podcast and content reward platforms
• Bitcoin salary conversion services
• Testnet participation and ecosystem rewards

Obviously, none of these will make you rich overnight, but they seem like interesting ways to slowly stack sats over time.

For those who have actually tried these methods:

• Which one has worked best for you?
• Are there any underrated ways to earn Bitcoin that more people should know about?

I'd love to hear real experiences rather than just promotional recommendations.