Daily practice. That’s the No. 1 principle you need to keep in mind if you ever dream to play the guitar well. But the real guitar is so big that it’s not suitable to be taken anywhere, for you to play with it again and again. Thus we’d like to recommend this PocketString device to you. It’s smart and lightweight, and its tiny 4 fret board would let you practice the fundamentals at any place and any time. It’s going to be available next month for less than $30.