I'm moving to a smaller office and have all kinds of things that aren't needed and/or aren't going to fit:
Huge oak conference table with 6 chairs. Great for conferring, dining, sewing or spreading out all your paperwork. Top unscrews from base for easier moving. $50 for the set.
A variety of "client" chairs - $10
A variety of "task" chairs, all working. $25 each.
A variety of task chairs not working - Free!
2 desks: one small, oak $30; one large, pressboard but with locking drawers (with key): $50
Other random things:
a "couch desk" that wheels under the couch if you'd rather work there - $25
small key-lock fire safe, heavy - $10
coffee maker - $5
Holiday decorations - various holidays - $5
waste baskets and recycling bins - $5 each or 3 for $10.