Does Anybody Actually Use Travel Brushes?

I don't really travel very much (and then only by car or train), and when I do I take a normal-sized synthetic (Stirling 2-Band) packed it in a flip-top pill bottle.

However, my favourite boar brush happens to be an Omega 10086 Travel Brush, with an 18 x 42 mm knot.

I also like my Wee Scot (14 mm), especially for using with a nice soap that is discontinued, just to stretch it.

Synthetic dries fastest and thus very suitable as travel brush.