Unfortunately it was a really hot day, and pain kept us from the festival during the heat of the day - but we did manage to find a spot by Lake Sacagawea before the 10PM fireworks, and it was great fun. We had several families around us, including a child who followed every big light display with "is it over now?" - not sure if he was disappointed, eager to go home to launch his own, or something else! It was funny though, and the parents were very patient with their explanations as the next flash lit the sky. And once it ended we were out and home within about a half hour.
We once visited the Vancouver WA show and it takes forever to return to Portland; also that year I lost my prescription glasses then lost a hat while returning the next day in search of the glasses! The next time was also expensive, as we were rear-ended by a drink-hit-run driver after choosing to stay on the Portland side to make the home trip easier.
Nice to leave those memories behind!