OK, so a wallpaper app isn't necessarily going to change how you work. But we look at our phones so often during the day wouldn't it be great if you could see images that inspired you? Maybe they're your own photos (perhaps you've edited or put captions on them!), or some stunning images from elsewhere.
Whichever you want Google Wallpaper lets you not only set wallpaper and lock screen images, but it will rotate them so you get a fresh image each day.
Hopefully the last few posts have encouraged you to use your mobile to do more. You've got it with you all day everyday, and it is a powerful little computer that can make many of the tasks you have to do quicker and easier.