Lucy and Viv try to replace the TV antenna on the roof.

Lucy plans to surprise Vivian with a new mattress and a redone room while she's on vacation, but the electric mattress Lucy bought her malfunctions (it moves around the room when the motor is on) and Lucy is forced to return it. However, Vivian returns home early and has no place to sleep, so she and Lucy have to share the boys' bunkbeds for a night.

Lucy convinces Viv to start selling her caramel popcorn.

The ladies escort a local cub scout troop on a trip to Washington.

Lucy and Viv decide they need an extra room where they can entertain visitors.

Tired of her daughter Chris hogging the bathroom all the time, Lucy asks her neighbor Harry to install an extra shower for her. Not wanting to do the job, he hires a plumber to do it instead. Lucy nags the plumber so much that he quits, leaving Lucy and Vivian to finish the jobs themselves!

Lucy follows Mr. Mooney into the bank vault and then closes the door for privacy, causing them to be locked in until the next morning.

Sherman leaves the water in the bathtub running and it runs over, making the plaster in the ceiling below collapse. Mr. Mooney convinces Lucy that it's Viv's fault and they threaten to throw Viv out if she doesn't pay for the damages. They take out their lease and in it, it says that the rent will be considered down payment for the house, after five years, if the tenant desires. Viv has Mr. Mooney and Lucy thinking that she will and they end up trying to steal it from her, while she's sleeping.

To make money to buy a bike for Jerry, Lucy takes a job as a kangaroo.

After tripping over one of Jerry's toys, Viv decides to sue Lucy.

Lucy invests in a boat.

When Vivian makes some comments about Lucy's baking ability, Lucy enters a baking contest to prove her otherwise. Lucy then swaps hers and Vivian's entries in the contest, which leads to a food fight!

Lucy advertises for a roommate to help with the expenses, and after reading the correspondence, she finally decides on Carol Bradford (Carol Burnet), a frumpy off-kilter librarian. Carol soon starts taking over, reorganizing the apartment, laughing like a hyena, and generally driving Lucy nuts. Lucy and Mary Jane scheme to help Carol develop a social life (to keep her out of Lucy's hair), so they have a small party to introduce her to some boys. It isn't long before usually mild-mannered Carol begins drinking, singing, and being the life of the party.

Lucy tries to wangle money out of Mr. Mooney to redecorate, but can only manage enough to do a few things herself. Things are going good until she decides to use fabric paint on her sofa and the sprayer malfunctions.

Lucy needs Mr. Mooney to give her some money to buy Chris a dress for a dance, but Mr. Mooney is in the hospital with a broken leg. Lucy is a hospital helper and on the next day she has work, she tries to get Mr. Mooney to sign the check. She gets kicked off the floor Mr. Mooney is staying on and dresses as a doctor to get into his room.

Lucy tries to convince her siser to have a fancy second wedding.

Lucy and Viv organize the local women into a volunteer fire brigade.

Lucy and Viv quarrel about where to go for their double date.

One of the kids needs money for a birthday party they're going to, but Lucy and Viv don't have it. To solve they're money problem they start up a birthday party, throwing business. At their fist party, everything bad that could happen, happens.

Chris decides to go steady with a boy who turns out to be Mr. Mooney's son. Lucy and Mr. Mooney don't like it and team up to show the kids a lesson by teaching them the real responsiblities of a serious relationship. And then the two adults must camp out in a treehouse to make sure the two don't elope.

Mr. Mooney hires Lucy to give a new toaster to anyone who opens a savings account. Lucy tries to drum up business by getting her friends to close out their savings accounts and then redeposit the money as new accounts, leading to a rumor that the bank is failing!

When the bank accidentally gives Lucy a check for $2,000 instead of $20, Lucy decides to hide the money in a candy box for a few days to give the persnickety banker a good scare.

In order to get the money for a parade uniform, Chris applies for a job as a soda jerk.

Lucy accidentally locks Mr. Mooney in the bank vault and finds a ""can opener"" turned candy store owner to open the vault. Once he opens the vault, he goes back to his old ways and steals several bags full of money and locks Viv and Lucy in his candy shop.

Lucy goes to her college reunion. While she's there, she helps Chris and some of her friends steal the bell tower statue. She and Viv end up having to put it back or suffer the consiquences. They get locked on the top of the tower, until the dean discovers them.