I concur with the PPs...most of the WDW TS restaurants aren't equip to do take out in the traditional sense (i.e., go up to the podium, place an order, and then take it with you). At best, you can make an ADR, be seated, and then ask to have the food boxed up immediately. It's worth noting that most TS locations do not have plastic silverware, napkins, or bags, so you'll need to get those yourself from a QS location.
Regarding the QS locations, you can take the food with you, but they also generally do not have take out containers. They can give you an extra plate to use as a cover, but they generally don't have containers that seal shut. They may or may not have bags to carry multiple items either. The best QS location (in terms of carry out containers) is Les Halles (I think they know a lot of guests get pastries to eat later on).