Notezilla, lets you pin sticky notes on top of other program windows so that they are still visible while working with other apps.

Though it may seem like an elementary feature, it is highly convenient and a must-have feature for your productivity.

Having a sticky note always visible while working inside other programs avoids the hassle of switching between the program & sticky note, minimizing windows & setting focus at different locations. All such trivial, tedious tasks vanish away when you have the sticky note pinned on top.

Watch a short video (48s) demonstrating this feature.