the best one for most people. what do you do? do you just ask them to send their availability... or do you give them a few selections to choose from?
many people (in the spirit of giving others the most freedom) would simply ask for the availability of others, without putting (many) limits on it. for example, a friend who serves on a board with me recently asked for our availability "in the month of august." wow! that's a lot of dates and times to list!
a couple of people were unsure of how far out to go and provided too many dates, overwhelming my friend with options.
someone provided too little, which 