[Falkon1313]

Sleep until about 15 minutes before the first meeting. There's no sense bothering getting into work only to be interrupted by a meeting.

If it's a meeting-heavy day just resign yourself to the fact that you're not going to get anything done that day. So basically, you have to plan your sprints to be two days shorter than they actually are (or whatever, depending on your company's meeting schedule).

Adjust all your estimates accordingly. A 3 hour task will take all day when you factor in interruptions, meetings, and meeting fatigue, so estimate 8 hours for it.

Sigh heavily, and remind yourself that you couldn't possibly get more than 3 days work done in two weeks, under the circumstances. So what little you did is actually pretty good.