Skip could mean a lot of things. However the first thing that comes to mind is how long since you had a tune up? Spark plugs do need to be inspected and re-gaped on occasion. It sounds like a simple tune up problem more than likely/ Air filters get dirty, plug wires break down, vacuum hoses develop hair line cracks, Air flow regulators get dirty and need cleaned. Best thing is to see your mechanic before the skip turns into a 500 dollar thump.