I posted a while back about a scooter that I made.  The scooter was great, but I decided to upgrade it and turn it into a chair so that John could lean back on it.  This has been a great thing to bring to people’s houses when we can’t bring in the wheelchair.  If there are hardwood floors, John is able to scoot around (albeit slowly).  It’s certainly not a perfect solution, but it definitely has made visiting friends a bit easier.