  Due to the efforts by numerous ground-based surveys and NASA's Kepler and
TESS, there will be hundreds, if not thousands, of transiting exoplanets ideal
for atmospheric characterization via spectroscopy with large platforms such as
JWST and ARIEL. However their next predicted mid-transit time could become so
increasingly uncertain over time that significant overhead would be required to
ensure the detection of the entire transit. As a result, follow-up observations
to characterize these exoplanetary atmospheres would require less-efficient use
of an observatory's time---which is an issue for large platforms where
minimizing observing overheads is a necessity. Here we demonstrate the power of
citizen scientists operating smaller observatories ($\le$1-m) to keep
ephemerides "fresh", defined here as when the 1$\sigma$ uncertainty in the
mid-transit time is less than half the transit duration. We advocate for the
creation of a community-wide effort to perform ephemeris maintenance on
transiting exoplanets by citizen scientists. Such observations can be conducted
with even a 6-inch telescope, which has the potential to save up to
$\sim$10,000~days for a 1000-planet survey. Based on a preliminary analysis of
14 transits from a single 6-inch MicroObservatory telescope, we empirically
estimate the ability of small telescopes to benefit the community. Observations
with a small-telescope network operated by citizen scientists are capable of
resolving stellar blends to within 5''/pixel, can follow-up long period
transits in short-baseline TESS fields, monitor epoch-to-epoch stellar
variability at a precision 0.67\%$\pm$0.12\% for a 11.3 V-mag star, and search
for new planets or constrain the masses of known planets with transit timing
variations greater than two minutes.
