When we move to a new house or refurbish the old one, if we could make plan and design for our dream homes on the computer in advance, that couldn't be better. Because it can quickly and intuitively show the lifelike effect of completed design, and especially we don't have to spend a penny for this to buy the materials and services while trying and comparing various house design as if we do in real life.
Sweet Home 3D is a free, open-source and cross-platform (written in Java) interior aided design software from France. It can help you design and decorate your furniture on a 2D house plan, and allows to preview the whole panorama of the decoration layout with 3D perspective.
Voice/video chat is already not a new thing now. But if we could add a bit of whimsy into it, such as voice morphing, that would make the chat game more interesting. In order to achieve this effect, you may already know that the classic and famous AV Voice Changer Software can do it for us.