I don't need an
ECV all the time, just for WDW or when we're going to be mobile for long times. I found it easier to keep track of my kids, as they usually held onto the arms of the ECV and walked with me. THe only danger is: DO NOT RUN OVER THEIR FEET! They tend to stand too close for you to manuever. I spent a lot of time saying, "No, back up. Back UP. CONNOR, BACK UP!!"
I wasn't sure when to use the FP line, the standby line or just punt. So I asked the kind CMs at the front of the rides. This is the best policy, I think. We traveled this year and last year with 2 kids (4/5 and 8/9)
For example, when I zoomed up to Star Tours the CM asked if I could walk a little bit. I said yes, parked, and she sent me up and around everyone else, up the far left wheelchair side. This was so much easier as I didn't have to walk the whole queue with all the zigzags. Last year DS (then 4) chickened out at the very last second. They let us sit on the benches, DH and DD went on. They put DS and I into the line, the doors opened, DS and DH went out and DD and I rode.
At Mission Space they said I could ride it right in, but then I found that I had to wait while they did something. When I explained that I could walk, they moved the ECV out of the way
to the exit and we went right on. The other times we rode I parked near the exit and walked in (the queue is pretty short).
At Test Track the gentleman sent us through the exit, with lots of directions. At each place we were given a card with the time written on it and the size of our party.
At Spaceship Earth we went through an exit, gave our name to the CM inside, and sat on a curved banquette in the AC (awww, heaven!). After a decent sized crowd had assembled, they led us onto the ride.
In general, I found DSMGM and Epcot to be extremely helpful and kind.
The monorail is easy, the ferry is easier. However, be aware that at MK (TWICE!) I was left behind at the entrance gate. DH, DS, DD go through, and the CM LEFT her/his post!! After sitting there embarrassed for minutes (no I'm not exaggerating!), with other guests trying to open the gate, I finally got the attention of another CM on an adjacent turnstile. He said, "Hold on, now, these people have been waiting!" Those people turned to him and said, "She's been waiting longer than us! Her family is way ahead of her! Let her in!"

Thanks nice people! This happened TWICE at MK. So watch out!
I bought the Passporter for Disabilities book and found it very helpful. But, generally, I found just talking to the CMs the best policy. They really do help, and usually very cheerfully!
This may be too much info, but if you'd like more details on how I managed each ride, PM me and I'll happily bore you with more!
