This bpost is beyond air travel.

• [i=ink pen also fine]
• [w=wood pencil also fine, light-weight]
• [iw] bottle pockets on either side of the backpack
• ikea pencils .. with the sunglasses?
• blue folder in my backpack ..
• [i] breast pockets of every shirt
• .. The button hole of a T-shirt is usable, but presents practical challenges
• [i] backpack handle .. To prevent a protruding pen,
• .. prefer short pens
• — temp locations
• access-card holder

Standard locations are not convenient enough for me:

• pen-holders inside zip compartment of backpack
• zip pocket housing my wallet/passport .. unsafe

— trade-off between access vs risk@loss .. The most convenient locations are often insecure. So I often resort to cheap pens