"Jan is certainly an eager beaver. Any time there's work to be done,
she's the first to say she'll help."
Easy does it!: Be very careful! / Don't do anything too fast or too hard!
A: "I'm going to move the table just a little further from the window."
B: "Easy does it! If you move too fast, you might knock over the plant!"
an egghead: a very intelligent person.
"Jake didn't make very good grades in school, but his sister was a real egghead."
elbow grease: hard work; effort.
"Yes, the car is pretty dirty, but it'll look nice again with a little elbow grease."
every other _____ : alternately; omitting the second one in each group of two.
"In your essays, please write on every other line. That will make the
essays much easier to read."