How to use Roman Rooms to memorize for Blindsolving (4BLD, 5BLD, and MBLD)

Wondering how you can possible store all that information for 4BLD, 5BLD, and MBLD? Use the Roman Rooms memory technique!

It works for 3BLD too (although it may be a bit slower). I used rooms until I averaged 1:15. I think Tom Nelson still uses rooms for 3BLD.

4BLD tutorial (J Perm's):    • How To Solve a 4x4 Blindfolded Tutorial (4...  
5BLD tutorial:    • How to Solve a 5x5 Blindfolded  
MBLD tutorial: [coming soon]