I use google authenticator along with a printed list of recovery codes. Half are stored in my safe and half in another location offsite. I own a yubikey but it

I use google authenticator along with a printed list of recovery codes. Half are stored in my safe and half in another location offsite. I own a yubikey but it's useless as a permanent device since it needs a fullsize USB port - something my phone (and the latest gen macbook) lack.