I swear, if not for kid/s and hobbies our house would be bare.
A good 75% of our storage space is taken up with my hobby stuff, old toys and clothes that we're saving for child #2 and toys that are off rotation. Just junk, like a collection of 20 or so baby food jars to freeze breastmilk in, and 30,000 blankets, burp cloths and prefolds for those damp early months. Not to mention all the old T-shirts waiting to be made into newborn nappies and wipes. BLAH
On the other hand, it'll be very satisfying to start getting rid of the outgrown toys and clothes in a year or so once #2 is growing out of things.