It's no secret that liquids cause an issue when it comes to traveling. You can only bring liquids of a certain size on the plane with you, and even if you try to put larger ones in your other luggage, it can get pretty heavy. A great solution to prevent the perils of traveling with lots of liquid shampoos is to switch to powder or bar shampoo. It will be worth the switch.
Definitely test out different powder or bar shampoos before you travel to make sure that they work well and that you like how they feel. No one wants an itchy scalp while traveling due to a shampoo switch.