In the past, my quarantine method was to wait for things to go wrong and just assume I have ich/live with it. Ich management. Starting this new tank, however, I've decided to take it seriously and do the full quarantine/medicating/etc. The humblefish method.
Fish: Treated for 7-20~ days on prazi (wrasses/etc need a longer ramp up/down). Then treated for 14-30 days on therapeutic levels of copper power (again, wrasses/other sensitive fish need more time to acclimate to copper)
Corals/Snails/Rock/Clams/Etc: 76 days in Fishless QTs
Anemones: 16 days in fishless QT
Shrimp/Crabs/Etc: 76 days or 16 days + first full molt
I have a full physically separated fish quarantine consisting of two 20gallon talls with drains to the house waste plumbed in separated from themselves with a partition. I have a separate 20g cube fishless coral/invert QT as well.
If anybody else wanted to set up any quarantine setups, now is the time. Petco is having their dollar-per-gallon sale at the moment. Head on in and get yourself a couple 20gallon tanks. I have some HOB's to pay it forward if @Gil&Fin doesn't want them back.