Protect your baseboards and furniture from your Modern Day vacuum hose rubbing against them as it is being pulled along. A sock is inexpensive insurance for the more costly items you want to keep as beautiful as possible.
The addition of a hose sock also makes it easier to pull the hose from room to room. Not only is there less friction on baseboards, but there is much less friction on the floor. Your hose will simply glide behind you as you move along.
A couple types of hose sock covers are available. One is padded and loose with a protected zipper running the length of the sock. The other is thinner and tightly fitted to the hose. Read a few of the 100s of reviews to see what others are saying.
Installing either type of sock can be done by a homeowner.