Ideas to Improve Created Item Sets

I've noticed that most players don't bother with building item sets for their favorite champions before they go into game, so I got to thinking about what Riot could do to make improvements to this. Here's what my friends and I came up with: 1. A "Previous Builds" tab that would show up next to the other item set tabs. Within this tab it would show you items that you bought in previous games. 2. While making item sets, the game could give you stats to give you more insight on how well specific items have worked for you in the past. 3. Automatic buying, at least for starting items that are on the top of your item set.