A Few Random Thoughts
After years of not having ridden a bike, I didn't forget how to. I guess it's true: It's like riding a bike, you never forget.
I bet some urinals were made to splash back at pee-ee on purpose. This could range from the inner structure, height placement, and/or water level.
Dyson hand dryers are awesome conceptually but terrible at drying hands especially fingertips.
I spent way too long trying to lead a fly out of my apartment through the front door. I'm pretty sure people around my apartment that watched (since my windows would open too) think I'm crazy.

The convenience of cameras probably has ruined how we view museums. Everyone and their mothers are taking pictures of every single object in the museums; it's not just Asians anymore (what a terrible stereotype). I understand taking pictures of a few things but is it necessary to capture the entire museum; most of which you'll never view ever again especially if it's from a VGA flip-phone camera?
I think we have to rethink how we look at storing our content, like pictures and videos, from gatherings/vacations/events/places. Most of the time, multiple people are capturing the memories and it's tough finding a central location to share that one event. I rather not have to go to someone's profile and search through their albums to view something that I may have been a part of; and this person may decide to delete their account and I won't have a method of viewing that content anymore.
Update: After a quick search, Facebook actually has Shared Albums where multiple people can contribute; again a useful feature that is not publicized. But it would be great to find a service that does this in an environment dedicated to media for a single event between numerous people. I'm surprised Google hasn't integrated something similar already; it would be amazing if they incorporated "Google+ Stories" with multiple users (with user permission of course!).