Easy primary care research project: good for fellowship, residency etc

I don't do clinical research any more, but occasionally I come across questions that might produce a cheap, interesting and publishable study.

Here's one.

What percentage of parents run out of their child's liquid antibiotic medication prior 24 hours early? My guess is that the percentage is over 70% due to normal loss, spillage, and over accurate dispensing.

Simple study, publishable unit.

For extra credit, what are the financial incentives for "precise" dispensation of liquid antibiotics?