Share 'Trench mulched pathways for everyday 'squeeze' and sponge irrigation'

I've been experimenting with trench mulching (as is my habit). My most recent hypothesis was  to harness the space between my garden beds as a means to trench mulch  my plants. This requires a bit of lateral thinking. Since I am on sand you need to explore creative ways and means to hang onto the H2O where the plants are at -- near the surface. So the setup is simple: In the middle of the…