Fall 2007 - we needed at least a full-sized bed for our daughter's room. I saw an ad in the paper for mattresses and box springs for $10 each. Turned out that our local Holiday Inn was buying new mattresses for their beds, so they were getting rid of all their old ones. They were for a long full-size bed (queen length, full width), but for the price, I figured we could work that out.
The guy on duty helped me find a decent-looking mattress and box spring. My husband bought a metal adjustable frame (cost about $30 or $40). My parents had a full-size headboard they didn't need, so that was no cost.
I bought standard queen size sheets, blankets, and a quilt on sale through a JC Penney catalog (had them shipped to our local store for more savings). So far, this has worked out well.
Now we could use a queen size mattress and box spring. Think I'll call our local hotels/motels...