Future (and all floor finishes) seem to be a hard thing to find nowadays. After visiting Several different stores and finding no trace of it, and little of any other floor finish/wax for that matter, I've about decided nobody waxes their floors anymore. LOL, can't say I blame them as I can't remember the last time I did such a thing.
Anyway, I found a good place to get the stuff, It's from a website called Soap.com. They are in Kansas, and have it for $7.55 a bottle, which is a good bit cheaper than what these turkey are selling it for on Amazon or Fleabay. Additionally, Order up $25 worth of stuff, and you can get free shipping. They also sister with sites called diapers.com, and wags.com (which is pet stuff), so you aren't limited to soap. Add code YANKEESFAN After you build up your $25 worth and you get a additional 20% off.
I got 2 bottles of Future and 3 packs of 4 Yardley English Lavender soap for $21. Very good price As that Yardley stuff is skyscraper high in most stores. The company has great reviews and ratings on Resellerratings.com, and I got my order in 2 business days.
So if your having trouble finding Future, surf over to Soap.com and grab you a lifetime supply while they still have it. They told me they have several cases in stock. While your at it, get your pet some dog biscuits, brushes, new bed, or whatever. Or if you are masochistic and have one of them screaming things, go to diapers.com. In the reviews I read they apparently are cheaper than grocery stores.