I am just learning how to solve a 4x4. I solve the centers, and then I start on the edges, which is where my question is. I solve and position all of the first layer and middle layer edges. But, I have trouble finishing the LL edges without messing up the first two layers. (I'm not going for speed, just for fun.) So, when I get stuck, I use a short little alg to finish off first layer corners. At this point I have three layers solved. Is there any way to finish off this last layer nicely? I basically taught myself how to do it, so if I'm doing this completely wrong, just tell me.