DIY Blog Tour: Calendar
In addition to marking the dates of your tour with who is hosting each date, include other don't miss dates to keep you on top of everything. Other important dates are when you need to get confirmation for the finalized tour, when to send follow-up emails, last day to send physical books, etc.
Planning your tour can be a whirlwind of activity and it wouldn't take much to get everything off schedule. By keeping an updated calendar of what needs to happen when (and checking it daily) you can help avoid the last minute shuffles and midnight panic attacks that come with missed deadlines.