Cricket- Last year I mentioned to the organizers they consider having Rollator style walkers (seats and brakes) available for rent. I'm sure some medical rental company could make a deal. I have 2 crappy knees, and it was amazing how many walkers were being used at the show. Other folks were wishing they could have brought theirs, but no room in the car. They can be purchased for about $80 at WalMart, drugstores, online w/ free shipping, etc. The ones with 6 - 8" wheels are better if you have to walk on grass or uneven pavement. Surgical supply houses charge $200 or more! Some insurance companies cover the cost. Put an ad on Craigslist and Freecycle, check with Thrift stores and churches for loaners. I use mine for toting my machine, and it's a few inches higher than a regular chair. Anything that saves unnecessary pain is great!