LinksetsI find myself with prims to spare after the increase. I've been gradually using them to spruce-up the abandoned land in the area of my own land by encroaching with plants linked to roots on my own land, thus trying to add landscaping content that (I hope) will be generally regarded as an improvement over barren land.
* Generally I label the linkset as eligible for return at any time. I mean, obviously they are anyway, but just to suggest to any neighbor that they could ask me (or Linden support) to "clear the brush" if they want.
* I try to use only unscripted objects and alpha-masking to minimize any contribution to lag (sim- or viewer-side, respectively). Note that alpha-masking invokes Mesh LI accounting, so sculpts are rarely an option.
* Everything should be set phantom (or "None" physics type).
* Linksets can have elements with origins 54m apart. Once an assembly is linked-up, it's impossible to unlink an element while any part of the linkset is on somebody else's land; sometimes it's easiest to edit the linkset in a sandbox, then put it back.