Last week I talked about my back from over packing. My suggestion is to create a list of items and attach conditions to them. Certain things I need every business trip such as my laptop, socks, underwear, chargers, but other things I only need certain trips such as my passport and Charles Schwab ATM card are only needed for international trips.
Also apply multipliers. I bring underwear and socks in a # of days + 1 fashion because ya never know.
I bring shirts equal to the number of days, but I may only bring 2 or 3 pairs of slacks and 1 set of workout clothes…2 if i’ll be gone more than 4 days.
When I go on personal trips things are skewed because suddenly I need jeans, I may need sandals, etc, and I have to do those trips as a one-off (except for underwear and socks).
I don’t have this formally written down because I hate lists and organization, but I try to mentally go through the list. I also triple check that I have my passport when going to Canada. I always have my passport card in my wallet and recently I’ve been driving across, but I still like to know I have the book too *just in case*. I check before I leave my house, I check while I’m still driving, then I check again after I’ve parked my car.