»In which we skip the Forever part

As US postal rates increase, the Postal Service has plans to issue a "Forever Stamp" to allow customers to hedge against future franking costs.
I know that, from the number of yellowing, adhesive-backed F, G, and H stamps in crystalline envelopes at home, that I rarely keep postage for long enough to make use of a Forever Stamp. Nor do I want to make what is effectively a loan to the Postal Service. I also recall the frustration I felt at the last rate increase, when the Los Angeles post office I went to did not have the new post-card stamps, not the 2¢ (or was it 3¢?) stamps needed to make up the difference from the old to the new rates.