Another, completely opposite approach, would be to forget about taxes, and just pay for what you use + related projects tied to it (which you voted for).

For example:

You enjoy using the airport close to your home, you pay to maintain it each time you use it. But you also pay for a second related layer that all other users (including you) have decided to tie (by BTC-voting) to airport taxes. Such as space exploration, transport innovation, etc.

You are reassured by this excellent hospital in your vinicity, everytime you need to use it, you pay to maintain it, and also pay for related stuff (which you voted for), such as doctors in hostile zones, free medecines for poor people, etc.

You fancy that nice highway to get to your job quickly? You pay when you use it, and it covers both the price to maintain it, and also maintain/create new roads in the countryside, because you decided to vote for that related project.

I'm just thinking aloud, don't mind me.