In this box I put only what I need on the flight line, battery, fuel, starter, fuel pump, volt meter, tachometer, small hammer and rope to hold back planes, and quick charger.
Don't you flip start 'em?
....
I too went to wal mart but I went to the fishing dept. and got a Plano 737 tackle box...it holds all my stuff including a triton, starter battery, starter, chicken stick, and spare props and bits & pieces (there are 3 containers for small parts off to the side) Despite the fact that it weighs a ton, I think it works pretty well.
HTH