I ran out of the bought stuff and the brand I was using was pretty
horrible anyway... and DH wanted chilli so I decided to mix up my own
in an empty spice jar. I didn't measure, I just used a regular
teaspoon to scoopy the spices out of their individual jars and into
the empty one. So my measurements are very rough -

1 heaped tsp garlic powder
1 heaped tsp onion powder
1 tsp coriander
1 tsp cumin powder
1/2 tsp ground cayenne (if that!)
a pinch of cinnamon
1 tbs paprika
1 tbs smoked paprika

Then I shook everything up and tried it and it tasted pretty darned
good. I didn't put any salt into it, and once I'd added a can of
tomato sauce to my meat it didn't need any salt at all.