People ask me all the time how I maintain my tone, especially in my arms. With the extremely busy schedule I have, I still make certain to do at least 8 minutes of Pilates every day... so on the days I have limited time, the following exercises are my secret to toned arms and legs and a flat tummy.
Warm-up
Improves circulation, stretches and strengthens legs
Toes, Heels, Heel Lowers
Lying on the platform feet on foot bar, inhale and straighten your legs, exhale and bend your knees. Change foot position and repeat. (8 - 10 reps)
The Hundred
Improves lung capacity and strengthens abdominals
Lying on the platform, hands in straps, arms extended to ceiling, head and shoulders lifted, lower arms to side. Inhale for 5 counts and exhale for 5 counts as you pump your arms up and down. (10 reps)
Legs in Straps
Stretches hip joint and strengthens legs
Lying on the platform with feet in the straps, legs extended to the ceiling, inhale and lower legs to 45 degrees, exhale and lift. Circle legs in each direction. (8 - 10 reps) 
Arms in Straps
Stretches shoulder joint and strengthens arms and chest
Sitting on the platform hands in the straps.
Stretches hamstrings and calves and strengthens abdominals
Standing on the platform, hands on the foot bar, Inhale and push platform out, exhale and pull it in. (8 - 10 reps)
Pelvic Tilt
Tightens and lifts the bum
Lie on the platform, feet turned out on the corners of the foot bar. Lift tailbone 4 inches off the platform, keep waist down. Inhale and straighten your legs, exhale and bend your knees. (8-10 reps)
Running
Cools down the entire body
Lying on the platform feet on the foot bar, inhale and straighten your legs, exhale and bend your knees. (8-10 reps)