Use electrical tape to cover LED lights

Prannay explains a trick of carrying a roll of electrical tape with him to block blinking LED lights in hotel rooms.

Business travel blows. And we used to do too much of it for often unnecessary visits. We would fly economy, stay in crappy hotels and repeatedly visit clients who frankly after the 3rd visit or so were getting bored of seeing us so often.

Sometimes though there would some trips which were instrumental in developing trust with our customers. Those were valuable. With this understanding it would probably make sense to travel business class and stay in a nice hotel but be very careful about choosing who to visit and why? How could we do that?