Watch the Sliding Into 5th online guitar lesson by Tony Smotherman from 50 Power Pentatonic Licks You MUST Know
An interesting idea is to take you pentatonic scale and move it across two strings diatonic ally. This is a great way to bust out of tired runs! Use your first finger to do all the sliding. Unless I your descending. In that case it'll be your ring finger. Try on other string sets too staying true to the scale.