Owner's Locker is a 21st century version of the "Owner's Closet" found in many traditional timeshares a decade or so ago.
The old traditional timeshare model involved renting the same week(s) in the same villa room year-after-year. Due to the recurrence involved, many timeshares created an "Owner's Closet" which gave each owner a small storage space for items that they didn't want to have to transport back-and-forth each time.
Owner's Locker follows the same concept. Each customer has his/her personal storage tub. The tubs are delivered to the resort at the start of a trip and picked-up afterward. Each owner seals his own tub for security purposes. Between visits they are stored in a climate controlled facility. Text messages and emails are used to update folks on the exact location of their Locker throughout the process.
It's a great way to save on luggage fees, avoid packing and re-packing the same items over and over again, have a place to store some leftovers which would have otherwise been thrown away, and so on.
Here are a few things off the top of my head stored currently stored in our locker:
* Wireless Internet router
* A couple small boxes of cereal
* Partial bottle of laundry detergent
* First aid supplies, mending kit
* Wife's hair care items (curling iron, etc.)
* Rain ponchos
* Lanyards, spare pin backs
* Ziploc bags (always handy to have)
* Popcorn, vegetable oil
* Our own bed sheets
Just a lot of stuff that we use ever trip, don't want to transport each time, don't need to use between trip and stuff that we would have been forced to throw away after a trip if we didn't have a place to store it.
At worst I tend to think that Owner's Locker pays for itself via deferred luggage fees and other savings. And it's a great convenience.