Big Q: have you developed a dedicated HOMO technique? Is it your dominant hand or the other one? Left or right?

HOMO stands for "hand of mechanical operations", i.e. the hand with which you will touch a door handle, move a toilet seat, flush a toilet, wipe and operate a toilet brush and/or a plunger if necessary. This way you will always have one hand relatively clean for using your phone or reading a book (you can rest them against HOMO forearm), picking your nose etc.