<p>Personally, I'm sorta planning to store them somewhere (along with my waitlist letters) in a personal album or notebook. Maybe in 20 years I can dig them up and say to my children, "Look! This is where your father got rejected!" There's a bit of pride to be afforded in them -- well, if you did eventually get accepted to somewhere that you're happy with -- because your choices did reflect a bit on your ambitions and personality.</p>
<p>You could keep them, make a gagillion dollars/cure cancer/win an olympic gold/other impressive accomplishment, and then mail them back to the school saying what they missed out on.</p>
<p>I'll tell you what my son did - he told me to put them in his college file. He has some younger siblings that really struggle academically, while he got a lot of merit money and attention. He wanted them to be in the college file so one day when they were doing college applications and dealing with results, they could see that he got rejected from colleges, but found one he was happy to go to.</p>
<p>I am waiting to see if they grow some roots or buds after putting thm inside some text books. I take a peak once in a while but so far nothing..</p>