Cool [Q] Homescreen

I have been on my S3 since it came out and am just wondering if anyone can make any suggestions to an excited guy with a new phone.

I feel like there is enough screen real estate to add another row of apps, but I don't know how to do this.

I also used the alarm widget built into the S3, but on the S5 it is taking up an entire row which is overkill and I cannot figure out any way to resize the widgets, so some help on doing that or a replacement for the alarm app would be awesome!