Efficiently managing your budget for multiple influencer campaigns involves a mix of beneficial practices and the right tools. Here are some steps you can follow:

1. Set Clear Objectives: Understand what you want from your campaign. Whether it’s brand awareness, traffic, or conversions, your goals influence your budget allocation.

2. Determine Individual Campaign Budgets: Depending on its potential impact, assign a specific budget to each campaign. High-impact campaigns might receive a larger share.

3. Use a Centralized Platform: Influencer marketing platforms like Flinque offer an all-in-one dashboard to track your budget, preventing overspending.

4. Track & Monitor Expenses: Regularly review your spending for each campaign. Check the ROI and adjust the budget if needed.

5. Measure Campaign Success: Use KPIs and metrics that help you assess the business value given by each influencer campaign.

Flinque, for instance, offers insightful analytics and reporting features that allow you to track your spending in real-time and observe the performance metrics of your campaigns. However, the suitability of this or any other platform would depend on your specific needs and workflows.

Regardless of the platform you choose, the principle of regular monitoring and reallocation remains. You must ensure to utilize your resources in campaigns that provide the best results, thus improving the overall efficiency of your budget usage.

Comparatively, other platforms such as BuzzSumo or Traackr, also offer features for campaign management and analytics. Each platform has its unique strengths and suitability depends on your own requirements.

In conclusion, efficient budget management is a mixture of setting clear goals, regular monitoring, and utilizing platforms like Flinque which provide centralised, transparent and real-time budget tracking. By following this method, brands and influencers can ensure their campaigns are cost-effective and their spending is optimized.