This video is obviously American-centric and doesn’t mention the new rule that smart phones, tablets & laptops must be able to power up.  The rest of the tips are good general advice to get through lines faster.  I avoid wearing jewelry and belts.  So far, outside the USA, you don’t have to send a tablet through separately, you can leave it in your carry on.  We don’t bring a lot of LAGS, maybe just mozzie repellant in >100 ml bottles and a few small shampoo bottles if the lodging at the first stop isn’t likely to supply them – such as a small guesthouse or pension.