Weights not required....

Today's workout is an Abdominal based workout routine.

Start with: 

Corkscrews for 60 seconds

Mountain Climbers for 90 seconds

One legged situps for 100 reps  

Sprinter situps for 120 seconds

Frozen V-sit Tabata for 3 minutes

If you dont know what the exercise is, Youtube is a great place to look up videos of them.