I have been through the same thing myself. Keep in mind, you don't NEED more room...you WANT more room. I highly recommend magazines called Cottage Living and Real Simple. Both of these helped me personally with keeping my small house organized and very liveable. Smaller houses are "in" now. High ceilings and McMansions are "out". You said you have teenagers....will they be graduating and moving on in a few years? Will you then have a house that is too big that you don't have much equity in because you didn't put much $$$ down? You are in a great location and have equity in your home. You just poured a lot of $$$ into it. Try to make it work for you since the rest of your family doesn't seem to be itching to move. Good luck!
If nothing else, I can help you sort all this out!
The best option is to speak with a lender about your goals. Since the mortgage market has tightened, you may find the loan you seek (little to no money down) is harder to get now. Find out what mortgage program works best for you and your family's needs. Next confirm the market value of your ranch style home in today's market. Once these key questions are answered you'll have the tools to make an educated decision about what's best for you and your family. Best wishes....
Also most housing doesn't have city/ county provided trash pick-up. They have community dump sites you take your trash to. Or you can pay an independent company to come pick it up.
My advice to you would be to wait another year and look at the market. If you need an example, take a look at this house here -
It's been on the market for over a year, and the seller has yet to lower the price.