Crewneck sweaters are almost universally flattering. They can be casual or they can be a little dressier. They can be worn completely plain or with perfect and elegant jewelry. And, you can pair the same one with dozens of different things to make countless new outfits. Regardless of what you wear with your crewneck sweaters, they look their best when they are being cared for properly. That includes how you wash them, dry them and store them.
How you wash and dry your sweater will depend on what they are made of. Your typical sweater can be washed and dried in the machine but certain materials will benefit from more gentle care. For angora or mohair, dry cleaning is the preferred method of care. If you only wore your sweater briefly and find it is not soiled, you can deodorize it by hanging it in the sunshine briefly. For other sweaters, especially wool, it is the dryer that is the deadly enemy. Just one brief tumble in that machine and you have a whole new sweater for your poodle because it has shrunk so badly. You can wash it in the washer but you should lay it flat to dry.
When you are putting your sweater back, you should keep in mind that hanging them can cause dents in the shoulders or can make them pull out of shape. Rolling a sweater is a far better solution and can allow you to put more of them away in a smaller space. You can also fold them flat and put them in a drawer if you want. For long term storage, for instance during the summer months, the main worry is the threat of moths so making sure that all of the items are as clean as possible is very important. The big storage bags that allow you to collapse things down to a small width are a great way to store your entire sweater collection.
Another thing you should keep in mind is sweater fuzz. Some sweaters are more prone to developing fuzz than others and can make the sweater look old and ratty. Dealing with the fuzz can potentially ruin the sweater, so it is important to do it correctly and carefully. There are commercially available de-fuzzers, which shave the fuzzed up areas of the sweater without damaging the underlying thread structure. These should never be used on delicate sweaters or those that have ornamentation. You are going to wear your crewneck sweaters frequently because they are classic, comfortable and most of all, very attractive.