My favorite form of training when my clients or myself have no time is density training. Doing more exercise in less time. Which leaves more time for some of the more important things in life, like eating, sleeping,and spending time with family.
Use 3 exercises, one upper body exercise followed by 2 leg exercises. Do 30 seconds of each exercise resting as little as possible between exercises. Rest 2 min.
Then Increase the weight by 10 %, do the same 3 exercises for 30 seconds each. and beat the number of repetitions you did the first time.
Do no more than 2 separate circuits. This is very tough but effective
Circuit 1 Overhead shoulder press, reverse lunge and goblet squat ( dumbbells)
Circuit 2 Rows, step ups ( alternate legs) and front squats (dumbbells)
Circuit 3 Overhead shoulder press, Kettle bell swings and sumo squat ( Kettle bells)
Circuit 4 Push press forward lunge and squat ( Barbell)
Circuit 5 Overhead Shoulder press, squat and Straight legged dead lift (dumbbells)
Circuit 6 Bench press, Reverse lunge and Front squat ( barbell)
Circuit 7 Wide grip Upright row, Straight leg dead lift and front squat (Dumbbells)
Circuit 8 Rows, Kettle bell swings and Front squat( Kettle bells)
Copy and paste for future reference. Let me know if you have any questions.