If you've already played through Skyrim before and you don't want to deal with the game's lockpicking mini-game, you'll probably want to download this mod.
Easy Lockpicking is available for PlayStation 4 and Xbox One and it increases the sweet spot of the locks found all around Skyrim.
With the mod enabled you'll be able to quickly, and easily, pick locks, no matter the difficulty. That means you'll be able to get those Master chests open and it means you'll be able to easily slip into homes and rooms all across the map.
An extremely basic mod but one that could come in handy, particularly if you're on your second or third playthrough.