Dog Advice Needed

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Ok, so i have a year and a half old Bepherd (Half Beagle Half German Shepherd Dog). Overall she is well behaved. She is very affectionate towards me, my wife and our friends. She sleeps a decent ammount, plays with her toys etc. She is fully house trained. When we leave her alone in the house while we go to work or school she is perfect and when we come home she is very happy to see us and the house is in perfect order. However there are two problems i would like to try and correct, but i am unsure how to.

Problem 1 is that my wife usually leaves home at 6am as she teaches. I usually do not get up until 8am. In that 2 hours every morning my dog attempts to destroy the house. She gets into paperwork eats it up, eats DVD cases, PSP cases just generally destroys our personal stuff. It might help to say we do live in an Appartment, but we also do walk her a lot so she gets out of it a ton. But during this two hour time period she goes on a rampage i guess. By the time i wake up, the floor is covered with torn up items. I would prefer not to wake up at 6am as i know that would fix it as she never does this in front of us, but i am wondering if there is any other solution. We have tried that Bitter Apple, but it hardly deters her. Any advice here?

The other is the typical she gets way too excited on walks when she sees other people/dogs. Not in an attacking way, just overly excited. Whats the course of action here.

Any questions let me know, and feel free to add your own Dog questions as well.