Why does the money disappear every month?

Finding the spending you have stopped noticing, what lifestyle creep does to a raise, whether small daily purchases matter as much as people say, and which subscriptions are worth keeping.

Why does my money disappear when I do not feel like I overspend?

Money usually disappears into ordinary, forgettable purchases rather than dramatic ones, which is why a month of writing everything down almost always finds more than people expect.

Why do I never feel richer after a pay rise?

Lifestyle creep is the tendency for spending to rise to meet income, which is why a pay rise absorbed without a decision leaves you earning more and saving exactly the same.

Do small daily purchases actually matter, or is that a myth?

Small purchases matter when they are frequent rather than merely small, so the test is not what one costs but what it costs multiplied by how often you do it.

How do I decide which subscriptions to cancel?

Cancel any subscription you would not re-subscribe to today at full price, because the question that matters is whether it is worth paying for now rather than whether it was worth it when you signed up.