Don't pay rent except for camping facilities while on tour, and avoid that most days. Bikes vanish easily, and can be lifted over fences. Sublet, or store your gear. Eat rice and macaroni, not freeze-dried - you can probably shop regularly. Avoid prepared food, let alone restaurants. Do some test rides to check your reliability loaded, but pack tools and spokes. To save weight, take less, not expensive, super-light stuff. Part of the joy of touring is in the simplicity. One guy takes three socks - two to wear, and one to be drying on his panniers.