In one sentence, describe what the following article is about:

Even if you are just starting a new game and don't have a lot of simoleons, make sure your Sims' lot has all the amenities they need. They need a bed to sleep in, a kitchen with a sink, stove, and a refrigerator, a bathroom with a toilet, sink, and shower or bathtub, and a TV, stereo, or some books for entertainment. One amenity that is often overlooked is the trashcans. Make sure you have trashcans both inside and a large trashcan on the outside of your lot. To access build mode, select the icon that resembles a hammer and wrench at the top-right corner of the screen. Here you can add to your house or purchase amenities. Setting Sim autonomy to full allows Sims to act on their own behalf and fulfill their needs on their own. Use the following steps to set Sim autonomy to full: Select the icon with three dots () in the upper-right corner. Select Game Options. Select Gameplay in the sidebar menu to the left. Use the drop-down menu next to "Autonomy" to select Full. Uncheck "Disable autonomy for selected Sim". Select Apply Changes in the lower-left corner of the options window. To check your Sims' needs, select the Sim's image at the bottom of the screen and then select the icon that resembles an emoji with an arrow icon next to it in the lower-right corner. If any of you Sims' needs are red, they need to be taken care of immediately. If their needs are yellow or orange, they'll need to be taken care of soon. Your Sims needs are as follows: Bladder: If their bladder is low, click the toilet and select Use to send them to the bathroom. Hunger: If they are hungry, click the refrigerator to have them get a quick meal or leftovers. You can also click the stove, microwave, or grill to have them cook or serve a meal. Energy: If your Sim's energy is low, click a bed or couch and have your Sim lay down for a nap or go to bed. You can also have them drink and energy drink or brew coffee with a coffee maker. Fun: If your Sim's fun is low, have them watch TV, read a book, listen to music, play a video game or any other fun activity. Social: If your Sim's social is low, have them interact with other Sims in your household. If there are no other Sims in your household, select the phone icon at the bottom of the screen and have them call another Sim in town. You can also use the phone to arrange to have them travel to one of the venues in town to interact with other Sims. Hygiene: If your Sim's hygiene is low, select the shower or bathtub and have them take a shower or bath. Unless your Sim has the slob trait, most Sims hate a messy house. If you find trash piles, have one of your Sims throw them in the trash. If there are dishes sitting out, have one of your Sims wash them and put them away. If a countertop, sink, or shower looks spotty, have one of your Sims clean them. If there is green gas coming out of the toilet, have one of your Sims clean it. As your Sims get promotions and earn more simoleons, purchase better household items. If any of your Sims are waking up with an achy back, upgrade the bed. If appliances keep breaking or catching fire, replace them with better ones. You can also get showers, sinks, and toilets that don't need to be cleaned as often. Whims are optional tasks that your Sims want to do. They appear as thought bubbles above your Sim's head in the lower-left corner of the screen. Select a thought bubble to see information about the whim. Whims are usually tasks such as "Chat with other Sims", "Dance to music", "Watch TV", etc. Not only does completing whims make your Sims happier, but they also earn rewards points. To access the Rewards Store, select the Aspirations icon in the lower-right corner. It's the large hexagon-shaped icon. Then select the icon that resembles a present in the upper-right corner of the pop-up window. This displays the Rewards Store. You can use your Rewards Points to purchase potions and traits. A Happy Potion will make your Sim instantly happy for a while. You can also purchase traits that reduce or eliminate some of your Sim's needs.

Summary:
Build a house that has what your Sims need. Set Sim autonomy to full. Check your Sims' needs. Keep your house clean. Upgrade your amenities. Complete whims. Purchase potions or traits from the Rewards Store.