I'm currently playing a character that can switch fairly easily between a front-line tank and a spellcaster. I know that for my material components I will require a hand free to access my component pouch/focus or to use somatic gestures. The problem is, I plan to be using a sword and shield most of the time.
I know I can sheathe a sword as part of a move action, but what about a shield? Shields technically count as light armor, but the donning/doffing rules only seem to apply to a set of armor.
So, how quickly can I take my shield off so that I can cast a spell?