Video can be found HERE:
0:00 Intro
0:20 Why use a wallet?
1:40 How to start?
2:26 Install the Polkadot.js browser extension
4:24 Create a wallet account & seed phrase security
7:36 Substrate addresses
9:10 Deriving another wallet account
10:10 Allowing a page to see your addresses
11:15 First look at the Polkadot.js Portal
12:34 How to prepare a send transaction
15:10 Polkadot.js Metadata Update
17:20 Sending tokens from Alice to Bob
18:23 How to learn more