We had a short period in the US about 10 or 12 years ago where all liquids and gels were banned from cabin baggage -- no shaving cream, no toothpaste, no nothing, no matter how small. On business trips we had to run out and buy toiletries. That was a wild overreaction to some long-forgotten "threat" that was soon rolled back, and we must be careful not to take today's bizarre / fearful environment as a new normal, too.