Three things
Here are 3
Pick one. Each takes about as long as it says.
Find the subscriptions someone forgot about
Most households pay for several things nobody uses. Finding them is an hour's work and a permanent saving.
An afternoonFreeA friend
Go to the thing even though it is dull
The assembly, the match, the recital. Children scan the audience, and they are counting.
An afternoonFreeA friend
Teach a child something genuinely useful
Changing a tire, wiring a plug, making one good meal. Competence is a form of confidence that lasts.
An afternoonUnder $10A friend