An idea a day: 68. Setup permenant rental lockers in hotel, for freq flyers to place a set of essential items. There should be a set of things that you need to bring for any trip, personal things like cosmetics, shaver, essential pills, extra shirts, shorts or suits, these are the things that you may not easily find and buy in the place where you go.
If you frequently go to trips in 1/2 places, but can not afford a house, then you could make use of these lockers in hotels for these whole bunch of things. It could save you effort for not bring them again and again, it could also save you time and $$, as no more need to bring extra luggage, which may need charge from airline and need time to pick up in the transportation belts in airport.
It could also benefit to hotel, as it could increase the loyalty of customers, and make customers feel more like home, rather than an ordinary/ non-differentiable hotel. The locker need space, and space = $$, the rental service may require $$, or is a special service to VIPs, a attrative service for freq flyers.
The service can be extended and not confined to hotels only, the permenant/ long time rental service could be placed in airport, place around hotel area.
You could also setup a company for storing all the essentials, and delievery to any place once reqested, then place is not the determinant cost factor.