I am ready for a long road flight for work with a week- or months-long projects.
My approach to personal finance and investing is intentionally very simple because the purpose is to keep myself focused on important work and not finance stuff.
There are a couple of great new investing services that I found useful.
/ Investing Services
To hold moderately liquid assets, I like to use YouHodler. You can get 12% APY on your Euros and USD by holding the equivalent crypto fiat.
To buy crypto, I use Binance. Very low cost per purchase (0.1%).
Binance
I get the good peace of mind with a split like 10% (cash, highly liquid) + 20% (YouHodler, moderately, liquid) + 35% (crypto, lowly liquid) + 35% (ETFs, lowly liquid). However, the proportion should be very contingent on your personal risk profile.