age
age, and the Earth
a ski lift
Always date her never stop or wear the gimp suit to have sex with her.
your age
your age
I'd say that's more of a true statement rather than an idiom. Prices never DO come down - they always go up.
The years never go down addition your age and the time
Taxes always (almost) go up.
a meteor how could u not know that
Age
Age, the New Year, and space go up but never come down.
your age