From TCBoE; Bladesingers have practiced the somatic portion of their spels well enough that they may cast their spells one handed, suffering only a slight penalty. It adds +2 to their casting times, [...] ;)
I set the example of bladesinger, as an example that there are many circumstances that can modify the initiative, and I would like to have a place where to register them so as not to forget them.
Perhaps the initiative, may have an independent box of modifiers, apart from weapons and spells pop up box.
Something like that?
https://oi63.tinypic.com/2hxy83.jpg
What is your opinion?