I usually split lanes and ask a support to pick up smite intentionally when I'm in the forest picking up reds. That way I can have at least 2 by...say 3 mins?
(including enemy's)
But that's usually when I have my friend play sona, while I follow with Khaz.
Support getting smite is awful.
Ignite, Teleport, or even exhaust would be better.
For most of the game they would just be wasting a summoner spell.
if you last hit blue with smite, and then go the normal blue > wraiths > red route, smite will still be up in time to last hit red. its a lot better to last hit because if you're going against a good counter-jungler they can easily last hit your red and then gank you with it.
This is true, it's better to last hit, but you should be using smite whenever you can. If 30 seconds go by that you don't smite you're missing smite usage.
Every time you go into lane for a gank you should smite.
Should I buy Vi?