We use Kaiser out of SoCal. Have had refills sent to relatives but on a trip where that won't be possible, we plan to use Escapees or Good Sam mail forwarding. Many others out there. Most of the services will send you mail on demand via FedEx or UPS. If the park you are at won't accept mail or parcels most communities have a local Fedex or UPS drop location that will get your package. Had to wait until this age to enjoy life and the infirmities that go along with the age get in the way. Always a new way to skin a cat though. Let us know how you resolve it for your situation.