Non-ionizing radiation: what next?

Now that I've run my 2 meter (145.23) and 70 centimeter (442.70) repeaters for non-scientific propagation analysis, what next?

1. Construct a low power repeater at 224 Mhz for propagation analysis;
2. Build the VOX kit for the ID-O-Matic 2 repeater controller;
3. Construct and test an EMWIN data transmitter;
4. Evaluate the propagation of EMWIN data transmission at various frequencies;
5. Construct a crossband relay for 1.25m to 2m.
6. Study and pass the Amateur Extra exam;
7. Study code to 25 wpm;
8. Study for and pass the Commercial Radiotelegraph exam.