The expensive purchase gets the attention. The cheap one changes the day. A power bank that actually charges a laptop means you stop planning your afternoon around a wall socket.
Noise cancellation is not about music. It is about being able to think on a bus. The first time you use it in an open-plan office you will understand why people who have it never go back.
A second charging cable, kept where you actually are, retires an entire small daily annoyance for the price of a coffee. So does a watch strap you like enough to keep the watch on.
None of these will impress anybody. They are simply the four or five objects that stop the day from snagging. That is what an upgrade is for.