Me, so far, just the phone and car keys. I think a water bottle could be useful, and a scraper, and some kind of wax. Does the spray wax (like the new Swix stuff) work outdoors in the cold on a cold ski? We had one time last year when new warm snow was sticking to the skis and skating started to turn into walking.
edit: if there is wax, probably a cork or something too
are you talking about kickwax or glide wax? Yes, for classic, I will take one or two kickwaxes, a cork and scraper along.
For glide wax, stick with what’s on there.
Edit, I see you meant glide wax. No, don’t bring anything.
If you are worried, better to apply another layer at home before you leave,
New warm snow sticking should really only happen to the wrong kickwax.
Wrong glide wax, you would just be a bit slower. I would guess that you just didn’t have enough wax left on the skis in the scenario above.
Or, you did what ”my friend” did, and spray kickwax all over his glide zones and skate skis, having confused it with the new spray on glide wax