A Growing Problem

In the last couple weeks I've opened somewhere around 300 packs from various sets. A large portion was from my once every few months hobby box buy. The rest were from lucking into some great retail markdowns. Obviously this has been a blast. I'll show off some stuff soon. But tonight when I was sorting I came to realize what a large problem I have building up in front of me.

I'm being overrun by commons. I have near full sets that are in cardboard boxes. I have stacks of cards sitting on the floor with nowhere to put them. I have hobby boxes and blasters that still contain the cards, in the wrappers, that were not among the ones I found most desirable. I don't know what to do with all these cards. 

My problem is as much storage space as it is storage containers. While the space problem cannot be easily solved, the container problem can be remedied by buying more. But I honestly don't really want to. I have binders for my favorite sets and my Braves PC. I also have a 5k box for hits, inserts and other cards that could be of some value. But I don't want boxes and boxes of cards sitting around that I'm never going to look at and no one is likely to want in a trade. 

Now don't get me wrong, this isn't going to stop me from buying cards. This is why I'm starting to shift my focus to the more mid range sets that I really enjoy. But I still have the current problem at hand. Does anyone have any ideas about how to get rid of common base cards and low end inserts? I don't want to throw them away because I did spend money on them after all and as a collector I feel like that would be sacrilege. I have considered filling up USPS flat rate boxes with commons and offering them up for the cost of shipping or for trade. Does that pique anyone's interest?