I use PS1='$ ' on the local machine and 'foo$ ' if I've ssh'd to foo. I prefer this because: the location of the cursor is more fixed, it doesn't wander across the columns as the environment changes, so my eye finds it more quickly; I've a decent amount of line left before it wraps at the end of the terminal, and I often type 100+-character pipelines on the fly; a couple of taps of Enter gives almost blank lines that logically separate when needed.