I'm tinkering with Raspberry Pi, and envision a few small applications that will require external circuits. I find the breadboard setup to be a bit too fragile for long-term use, but I'm not sure how to make it more permanent without making a custom PCB, which seems like overkill.
Here's a crude breadboard to connect an I2C temperature sensor -- which can be redone as a cable and some heat-shrink tubing, but my next project will have a few more components.
One option seems like a few drops of glue in strategic places on the breadboard, but this seems a bit clunky.
Is there an option between breadboard and PCB?