Why won't a 2000 Toyota Solara start after you get gas?

Answer 1

Although there are many possible reasons for it, in my experience it more often than not results from a condition where either the fuel cap isn't tightened, (always turn past the "clicking" sound, 1/2 turn at least) or the fuel cap is dead and needs to be replaced. (yes, they DO wear out, much to most peoples surprise) I didn't hear you say anything about a check engine light, so that's the first place I'd look.