On a fixed annual budget, what's an effective way to ensure that you have the budget flexibility you need to experiment with campaigns to test their effectivenes?

Setting aside a percentage of the budget specifically for experiments and market changes provides the necessary flexibility. This dedicated allocation ensures that you can test new strategies or react to unforeseen market shifts without disrupting your core campaign spending. It's a proactive approach to budget management that supports continuous optimization. Other options are less effective for immediate budget flexibility. Checking industry reports helps with planning but doesn't create budget flexibility for experiments. Sending quarterly reviews or having monthly syncs with finance might secure future allocations or improve communication, but they don't provide the immediate, built-in flexibility needed for agile experimentation within a fixed annual budget.