When selecting values from a list in a repeat, migrate commonly chosen values to the top of the list (this might even be useful throughout a whole survey if there are multiple fields calling on the same list in different places). When dealing with plant species lists thousands of species long, many areas often have 5-10 very common species. If, after several selections within the repeat, these species would begin to migrate to the top of the list for easier selection in the long list this would greatly improve efficiency of data collection and reduce error.
