What window manager do you recomend for lowering ram usage?

[sunjam]

You can get much lower with a tiling window manager like e.g. i3, awesome-wm, spectrwm or sway but you loose also a bit of out of the box functionality.

Also interesting is wayfire for Wayland. Like Sway there is still a lot of active development around the wm and Wayland itseelf, but I find it quite pleasant already.

Thanks for these suggestions.  I'm certainly open to switching over to tiling since I've used Ratpoison before and generally find myself keeping things simple since the PBP is a simple device with only 4gb ram.  I hear lots of great thoughts about i3.

Wayland definitely sounds interesting.  How heavy is running Wayfire or sway?  I'm okay with jumping over to it since X is not important to me on this particular laptop.