For example, on creating iPhone videos to market your business:

- You cannot switch from front to rear camera while filming with the camera. So you either have to use another app or manually flip the phone in your hand.

- You can reply with video in Gmail by hitting the attachment icon and then photos icon. Way more powerful than text replies.

- Sound quality is WAY more important than video quality to keep people watching your videos. If you have an iPhone and a regular lavalier mic, you need a TRS to TRRS adaptor (2 lines to 3 lines on the plug) and a TRRS to lighting adaptor. I use the Rode Wireless Go and have to buy these two gadgets, which don't come in the box.

- You can comment on a Facebook post with a video, but you can't do this on LinkedIn-- only a picture.

- You have 15 seconds to reply in Facebook Messenger, so learn how to keep it short-- or make multiple 15 second replies.

- You can share your phone screen if you're a presenter in a Zoom call. And everything works great (just like if you're projecting to Apple TV), except when you're recording video-- since the two interfere with each other. So pre-record your videos (stored in your favorite app) or switch to desktop webcam to show you using your phone.

- Google Photos app is super slow in uploading your videos from your photos library on your phone. So also pay for iCloud, Dropbox, and Amazon Photos (another $10 each per month) to have your videos automatically backed-up). You will have to keep these apps open every week to let it catch up, since uploads are faster when the app is open.

- Film vertically (portrait mode) most of the time if you're reaching mobile users, but horizontal if an interview or in a webinar app.

- Zoom records participant video, but GoToWebinar does not. We had GoToMeeting/GoToWebinar for 10 years but switched because of this.

- Amazon Photos has the smartest facial recognition and easiest way to share groups of pictures (instead of having to select each picture/video, one-by-one) with your external people (like freelancers and partners).

The way to tell whether someone is an expert in something is not much they've spent on gear or how many years they say they've been doing it, but if they are deep in the nuances of their craft.

Would you agree?