The concern: clumpy mascara. Dun dun dun...
The solution: when you notice that your mascara is beginning to thicken and clump more frequently (we're talking problems on the first coat, let alone the second), run your mascara wand under warm water. The warm water will rinse the buildup of mascara from your wand. Once you've cleaned your wand, dry it and take it for another spin in your mascara tube - the resulting application will likely be less goopy and less likely to clump!
Also, resist the urge to "pump" your mascara wand when trying to accumulate more product - pumping actually contributes to your mascara gooping up and drying out quicker than it should!
Here's to lovely lashes, Love!