Are there other ways to Do something once without additional overhead? Here's a short example, but I have instances with dozens of lines of code.
If[overwriteBrightBandsPlot,
Do[
Export[brightBandsPlotPNGfile, LPXH2];
Print["Wrote LPXH2 to ", brightBandsPlotPNGfile];
Print[];
{},
1]
];
I see that Block and Module support a procedure but they also create Temporary entities.
