I do all my video watching in the morning when I'm doing the set up for the (first) match and getting the match bonuses up to 4x 10%.

Two videos for bonuses, and as many required for morale boosting, I'll train the starting XI so that they regain condition by match time, and the rest of the squad as many times as is necessary to get the 10% bonuses and satisfy the training session requirement.

If there's another match later in the day I'll need to use videos for condition boosting and morale boosting of the starting XI. After that, I'd go farming for 5-6 green packs, but after getting 'no videos' first thing in the morning a couple of times recently I don't do that now.