When storing your clothes long-term, first consider the container's breathability. While plastic bags, cardboard boxes, or vacuum sealing may be great options for short-term storage, they won’t help your clothes hold up in the long term. Breathable plastic boxes and fabric bags help with airflow, prevent mold or mildew from building up, and allow proper airflow.

The time it takes to build a closet varies widely depending on the project's size, complexity, and level of customization. On average, construction can take anywhere from a few days to two weeks.

A simple reach-in closet might be completed in less than a day, while a more complex walk-in closet could take one to two days or more. A typical project often falls in the 2-to-5-day range. However, a large, highly customized walk-in closet that requires structural changes, like moving a load-bearing wall, will take significantly longer.

A professional contractor can provide the most accurate time estimate for your specific project. If you are planning a DIY build, it is best to budget additional time.

There are a few reasons custom closets are expensive: materials used, the luxury factor, and time to build. The people who can afford custom closets are those who can afford increased rates, and construction workers and contractors know this and charge accordingly. The time to build custom closets is substantial, especially if expensive material is being used or intricate details (like carved wood) are added to the project. 

You can modernize an old-looking closet by just painting it, but beyond that, consider electric elements like recessed or accent lighting. If this is a large and deep closet, you can consider adding an island to the middle or a nice ottoman on a rug. Luxury closets will have even more items, like felt-lined drawers for watches and jewelry, in-wall safes, electronic shoe storage, or a tablet catalog of their items.