Walmart offers the Better Homes and Gardens Neo Mission Futon in Gray for $184.99 with free shipping. That's $5 under our mention from last May, $54 off list, and the lowest price we've seen. It converts into a full-size bed with a 6" futon mattress and measures 80.5" x 35" x 33".
Vinegar is arguably the most versatile product in your house. If you aren't using it for all of these purposes, you're probably wasting money.