a bike counts as one thing- at least in my house- otherwise all I'd own are bike parts. and underwear.
I don't have 100 things. I'm quite certain I have close to 800. really, I have no idea. I just try to live by his mantra of:

reduce (get rid of some of your stuff)
refuse (to get more new stuff)
rejigger (your priorities)

When something new comes in, something old must go out.
When I buy something new, it's usually just "new to me" from the thrift store. I haven't shopped in a regular store in a long time (again, except for underwear).