I'm creating a form, and want to have our clients select from a list of counties, but allow them to be able to select multiple counties. Preferably the list would be a drop down, but I am open to other options. The only thing I've been able to manage so far with the drop downs is to just select a single option.

A messy workaround would be to list all 88 counties (thanks Ohio) with a checkbox next to each one, but that would make it a pain for me to have to read through all of the counties to find only the ones they selected.