Smith-- showers at the bivy site are easily poachable; camping free a the grasslands, cheap mexican at la burrita in redmond (first gas station on north of town)..if you wish to be somewhat legit, camping at the bivouck site is $4 and that includes a day pass (normally $3, and showers)
Bishop -- $2 per night at the pit; Schatt's bakery 1/2 off day old rack; thrift store near Galen Rowell's gallery..real thrift prices (.50 t-shirts, $2 hoodie)
Moab -- free water (gearheads; spring on river road); lots of free breakfast for guests bars--just don't go in the off season, the tend to know you are poaching when there are only 3 guest in the entire hotel.... showers at lazy lizard $3? and you can stay there for as cheap as ~$7; free internet at library (yeah, i know at most of them...)