This is my sewing cabinet, and slides UNDER my sewing desk. Since "UNDER" my sewing desk is filled with more stuff, the cabinet usually cannot slide UNDER, without a major reorganization job. I keep my small ironing board on top of the rolling sewing cabinet, and naturally, UNDER the ironing board is also crammed with whatever I can't decide where to put (what grammar)! The brand name is Roberts, and I had to search some to actually find a real one to inspect before purchasing. I bought this set 10 years ago. The cabinet and desk cost as much as a decent sewing machine - I have NEVER been sorry about spending so much money, as my productivity increased tremendously.
My sewing desk/cabinet are THE best things I ever bought for myself! Both are on wheels, the desk has one drawer, but the best part of the desk is that the entire back is on a full length piano-type hinge and folds up for large projects - such as a quilt! My sewing room is small, and my DH also uses this room for his hobby, so when I open the back up, I have to move some of my other stuff to another room. (There is still room for DH to work at his desk.)
The other piece of furniture I found useful is a K-Mart, low rolling microwave cabinet, also white, on wheels, under $20.00. It has a shelf and the top is almost the same size as a 18 x 22 cutting mat. Works great, and matches with my desk and cabinet, but I haven't seen it's top for several years - ! LOL, and I am too embarrassed to show it!