I've always wondered about resupplying at the Tuolumne Meadows-- that would make the haul up from Yosemite Valley easier. Does the store there carry much backpacker food?
I mailed a supply to TM Post office/ Store. We wandered around and took 3 instead of 1 or 2 nights to get from YV to TM so saving the weight was worth it
PCTA site says this capability is still there but I would check
yes you can buy stuff, but we do not do that. We just mailed everything pre-planned in advance, picked it up and kept rolling