Don't flail around with your skis and poles in the parking lot. Just slip your pole straps over the tip and tail of your skis, and you can use your ski poles as a handle!
Big thick heavy cotton socks are really underrated as ski socks and are much cheaper than socks labeled as ski socks.
If you want to ride a chair alone, go up the line with a group to fill a chair, and just don't go when the other group steps out. The guys behind you have already made up a chair, so you are home free to snag the next chair all to your lonesome!
The best way to teach a beginner is to get them clicked into the skis and bring them to the summit. The long runs will give them the needed practice.