We add either a bit of salt or a bit of sugar, depending on if we want to use them for a sweet or savory dish in the future... I also freeze them by the dozen, but I more often use them for scrambled eggs, so it doesn't matter so much!
I've had good luck with the whites, but the yolks seemed kind of funky. I may have just been too impatient and not let them thaw enough.
I've never tried whole eggs. I seem to always have spare yolks from making white cake or spare whites from making lemon curd. I just can't stand to throw them down the drain.
Whites freeze easily without affecting their texture. Yolks...not so much. Thus the pp's suggestions to mix them with either salt or sugar, which is supposed to stop this from happening. Here's some info on freezing eggs! http://www.wikihow.com/Freeze-Eggs
FWIW even when I added sugar, I had trouble with my yolks (I attribute this to user error, for sure). I just made a white cake tonight and chucked 4 of them down the drain 
rather than waste my time trying to save 'em...and invariably failing. I have to remind myself that it was only $1.50 a dozen...so my eggs are 12.5c each. Yolks are 6.25c each...so I really only wasted 25 cents. Just some perspective!
When you mix the salt or sugar into the yolks, it will make the texture a little grainy.
My hubby makes omelets with the whites, so I freeze 6 yolks to a bag. I use one bag to a cake mix instead of whole eggs. Makes it a little heavier, but tasty and easier to carve.
I have to remind myself that it was only $1.50 a dozen...so my eggs are 12.5c each. Yolks are 6.25c each...so I really only wasted 25 cents. Just some perspective!
Ceshell, I know you're right! I usually get my eggs for $1/dozen, so I know it's not much. But I was raised by a "depression baby" mother who taught me never to waste anything, especially food. We still tease her that she has every paper bag she's ever gotten in a store. She washes and reuses her aluminum foil. She's a very thrifty woman!
Heehee, well even though I can rationalize that 25cents away...I do admit that it still kills me to throw it out, just knowing that it is FOOD.
But I agree, I do hate wasting food...or anything for that matter. I have been known to wash my aluminum foil and ziploc bags, too 
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