Jenny Sugar of POPSUGAR holds that modified squats and lunges are the best ways to slim down the inner thighs and can easily be done at home. Also, consider incorporating cardiovascular exercise, such as running or walking at a brisk pace, into a workout for additional total body slimming.
Using a paper plate or a Valslide on carpet, put body weight onto a single leg, bending the knee. Slide the other leg outwards, then slide the leg back to center using the inner thigh muscles. Doing a traditional squat with the toes slightly turned out also tones and slims the inner thighs.