I will just have a checking account. As mentioned, I will have to learn how to use LibreOffice Calc for my personal account standings. This is because I will have just one Swiss account for my personal, and my business deposits. The personal account will be with my current bank account, and I don’t see a need to change. If I should need to pull out any cash, I will use my bank’s debit card to pull the money out, and keep it from there. To make life simple, I will carry nothing greater than $20 notes. I will otherwise not carry my debit card.
Since I will have just the one personal account, and I will need to learn how to use LibreOffice Calc, I will need to do management of my investment fund pretty deeply, and do some micromanaging. I will likely handle my personal affairs in the evening after any work I may have to do. I will imagine that my bank will treat me in a different way if I was regularly depositing multiple of thousands of dollars into the account regularly.