[semicolonandson]

1. A book holder. I noticed I got back pain from studying in recent years. This was entirely attributable to my neck position and buying a book holder stopped this. This, in turn, decreases the resistance to keeping a regular study routine.

2. A box of a 100 wax ear-plugs. Unwanted noise stresses me, and now I can reduce its intensity by 80%.

3. An electric moped. Allows me to zip between cars and avoid traffic, effectively cutting travel time by 1/3.

4. A collection of decent, second-hand suits. Most people underestimate the signaling value in dressing smartly. I've noticed that strangers are far more likely to strike up conversations with me when I dress like a gentleman - you seem much less threatening, more like a "civilian".