How much to pay a friend?
We just remodeled our kitchen. DH has a friend/acquaintance who is a plumber, and hooked up our sink and DW, and installed the faucet and side spray. He had to put in new drain piping - the new sink is deeper than the old.
We asked him to leave us a bill, but he said he didn't want anything (even for materials). We want to give him a gift card for his favorite restaurant, but aren't sure what would be a reasonable amount. We weren't home when he did the work, so we don't know how much time he spent, and I've never hired a plumber, so I don't have a clue.
I'd appreciate any thoughts!