there are more scientific ways to trouble shoot
get a 12 v test light on the coil..see if it flashes when cranking. pull a plug wire and use a spare plug you have in the battery cover.. see if you have spark.
need to test for fuel somehow.. your nose may help... or see if you have power on the fuel pump connector under the access panel in the trunk.. all these things take a few mins to do .. as long as you are not late for a meeting..
put the tools in your trunk and be ready to test the most basics.. you need to find out if you have a fuel or spark problem.