Store Data/Recall Data nodes

The Reroute feature in Geometry Nodes doesn't greatly improve upon the visual overload of node spaghetti:

(This is an unpolished WIP graph, but you get the point.)

A more elegant solution is the approach in Houdini of Null and Object Merge nodes. Null nodes store whatever data goes into them, and Object Merge nodes allow you to access this data elsewhere in your node tree:

(The path of the ground is defined in the lime square, and each of the grey squares use this data to perform their operations - meshing the ground, and detecting the edges of this ground, respectively. The black circle nodes are the Null nodes.)

This allows you to have little sensible islands of data, and at the end of each island, a checkpoint is stored.

It would also afford more explicit labeling of useful points in your node tree. Finding your "Main Curve" is much more meaningful and easy than finding the specific Resample Curve node which represents your main curve, when there may be multiple Resample Curve nodes throughout your node tree.

A possible solution in Blender would be to have two nodes - Store Data, Recall Data. Store data has one plug in, and a through plug out. Recall data has one plug out, no plugs in. They do not process the data at all, just allow you to store and access it.

The example above stores a curve, but the nodes should be able to store and recall whatever data is plugged into it, in the same way that you can change the data that comes in and out of a Group Input and Output nodes:

It would be extra great (bonus points!) if there were a Data tab in the Add menu that automatically populated with data that can be recalled in the graph.