Mommies and Daddies w/ more than one child...?

I am just curious how much baby equipment you have, and what yall do with the items from the previous child. My oldest daughter Avery is 3, so we got everything new and girly for her, and then when she was 13 months old we had her sister Madison, since Avery was still using most of the items, we bought more, another swing, another playpen, etc. Well this compiled with the items that we had from our 5 year old son, carseat, playpen, swing, hichchair, etc. So now that we have 12 day old twins, we once again purchased some more key necessities, car seats, and were given a swing and a pack n'play for twins, and two bouncers as gifts. What do you do with all of these products? Do yall use them in different parts of the house, send them to the grandparents, sell them, give to friends, etc. I hate to get rid of good products all of which are less than 5 years old, so what should I do with them? Thanks...and sorry for rambling, the clutter of baby equipment, and 7 kids in the house has got to my head, lol =)