1.5. Use a separate browser for sensitive sites, e.g. banks. (possibly, avoid storing these passwords if you can) I feel this is pretty simple, way simpler tha

1.5. Use a separate browser for sensitive sites, e.g. banks. (possibly, avoid storing these passwords if you can) I feel this is pretty simple, way simpler than many other recommendations here, and has its benefits especially for people that tend to browse without paying too much attention.