That’s it. Buy a presentation remote control. It will free you from the podium, or a mouse or even the keyboard. You will be more able to engage with your audience and you will be a better presenter.
Buy a simple one. One that does forward, back and blank. You do not need anything more complicated. It should be small enough to fit in your hand. The buttons should be easy to feel without looking. And it should work with any setup. Yours will give you comfort like no other. Your audience will thank you.
That is all.