On a business trip, lets try to name 10 gaps I can think of:

1.   Am I carrying the right amount of soap and shampoo for my whole trip?
2.  How could I make my luggage lighter, travel more worries-free?
3.  What will I wear for meeting my clients today?
4.  Any special event or restaurant I should check out today?
5.  Who else is in town? Whats the plan after work?
6.  Whats the time in my home town? do my colleagues know the time difference?
7.  How could I use more efficiently my time during my trip?
8.  My clothes all are crumpled
9.  How much extra weight will I be able to carry back home?
10.  Will I able to tell my colleagues and family all my adventures during my trip?

Perhaps, the longer I stay,
 
I have chosen a toothbrush (at the top), an artifact which we are familiar with on our daily basis.  And the reason I chose it out of few other artifacts we are surrounded by, is because in the past few days, on a business trip, and thinking on how to travel as light as possible, I found this portable toothbrush (at the bottom), including all different elements you might need on a tooth care session (except for the water)