Hey everyone, what would be your Top tips and tricks, functions, controls, templates, and generally awesome stuff that might help someone get started or even get ahead with PowerApps?

Hey everyone, what would be your Top tips and tricks, functions, controls, templates, and generally awesome stuff that might help someone get started or even get ahead with PowerApps?
Watch these videos from;
@mdevaney @Shanescows @RezaDorrani
https://youtu.be/F67_sZYMC2E
https://youtu.be/BnolkTK2Sng
Very informative.
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