Cosmetic surgery

Have a baby. Okay, okay. So it's probably more than twice as likely. How about adopt a baby.

How about have a yearly check-up.

Cheated in a relationship

Say prayers before they go to bed.

Hair colored?

That is very true about yesterday's question! That subject dominated our office from the time we got in til we actually had lunch!!! Then started up at about 3 or so.....'so what do we want tomorrow?" LOL!!!

Have their mustache zapped or remove lower body hair.

I miss read the question..while it is true that women are 2.5 times more likely to cheat on a relationship, the question says "to have this done", obviously meaning to seek a service of some sort...HHmmmmmmmmmmmmmm

Under those circumstances I would say have their car checked by a professional mechanic

Colonoscopy

Blood pressure checked

Hire a gardener/lawn service

give blood

Car detailed.