When the holiday season arrives (and when it ends), the necessity to change the budgets and bids of multiple campaigns and targets comes with it.
0:53 filter campaigns by Overspend or other metrics - remember, you do not want to randomly increase all budgets and bids for all campaigns. If a campaign wasn't successful before, it likely won't be a whole lot more successful during the holiday season as well.
1:20 bulk edit campaign budgets
2:14 same process for target bids