Thanks for your thought, man.
I've been sitting on floor and using an elastic band twice a day, doing 2 sets of 20 for four different exercises:
a) extending toe (like pointing your toe)
b) pulling toes to my right
c) pulling toes to my left
d) pulling toes toward my body
a is easy -- you just hold onto the ends of the band with your hands and wrap the middle around the back of your foot
for b, i wrap the band around my right (uninjured) foot and then loop it around my left (injured) foot so that i'm pulling the band at a perpendicular angle to my outstretched legs
for c, i cross my uninjured leg over my injured leg and do the same thing as "b"
for "d," i wrap the band around a solid object (my apartment's heater) before wrapping it around my injured foot, so that the tension comes when i pull my toes toward my body
other than that, lots of stretching of calves, icing morning and night, and general frustration...
i didn't get a boot, but my PT has been taping my injured foot every few days