Instead of having a list of items that the developers have recommended, it would be nice to be able to also/instead have your own row of predetermined items that you like.
For example, my character gets the same items every game. Instead of having to search through the clunky item menu, it would be so much easier to just have my own "recommended list" for that character, so I can just warp in, buy an item I know I want, and run back out.
This helps if you like to play a wide assortment of characters as well. Often you'll switch to a different character for awhile, and then come back and find that you don't remember all the items you found work best for your unique playstyle.