There are 3 small things that I've wanted to see added to Fallout, and all Bethesda games in general. They are:
1) A summon companion command. This would be a pip boy option that would cause your companion to spawn right next to you. I think it's really irritating when they wander off, or get stuck, or lost, etc. This would be a scripted solution to that problem.
2) End game spending options. There's that end game point when you have 100k+ and nothing to spend it on. I think it would be great if there were some neat but absurdly expensive things to buy, like for 100k you get a pocket size crafting bench, or a piece of power armor with infinite durability, or unlock crazy character creation options.
3) A bigger soundtrack. I really like the soundtracks in all the fallout games I've played, I just wish there were more songs total to help keep things from getting stale.
What are other people's 3 small improvements?