Best stomach & thigh toning exercises I can do at home?

From my personal experience, you can't spot reduce. But continuing with the cardio and strength training will be beneficial.

Try doing some exercised that strengthen your core. For example:

1. Full body extends: Stand with feet apart like you should for a squat, but bend down to touch your hands to feet/floor, then extend up with arms above your head and on your tip-toes. Repeat all the way down and back.

2. Plank pushes: Go into a plank position, but rest on your elbows and forearms rather than hands. Hold it, and then rock back and forth with your toes. Use your core muscles to hold your body in the plank. (Seriously it works your full stomach muscles!)

3. Lunge with twist: Not sure if you can do this, but do lunges and when you're in the full lunge, do a half twist in the opposite direction of the leg that's forward. Do these walks forward twisting.

4. Rapid twists: Stand feet apart holding a weight in front of you. Hold your stomach muscles, and twist rapidly side-to-side for at least a minute at a time.

5. Kettle-ball - if you can get a kettle ball, stand feet apart and place the ball in front of your left foot. Using your right arm, reach across and lift the ball up and across your body and hold out to the side, like you're doing a Heisman trophy pose. Repeat on opposite sides of your body.

6. Exercise ball - you can do a lot of core exercises off the ball. You can take the plank exercise and adapt it to the ball. The goal is to keep the ball stable and it will take your full body to do that. It can also make any exercises like crunches feel a lot better on your back/neck. You can do a roll up the wall with the ball between you and the wall. You can put your feet on the ball and hold your body up in a plank then roll your body up the ball from ankle to about knee and back. You can put your shoulders on the ball, feet on the floor, and hold your body up while pushing up weights.

The exercise ball is great and quite gentle. Mine only cost £5 from TK Max (UK). The children love jumping on it too x . I hope you like it if you decide to try it. Maybe you could ask at the gym and see if they think it would be good for you. Good luck!

Diet.

See the model in this: http://www.womenshealthmag.com/fitness/flatten-your-belly

She didn't get lean doing that ****.

An exercise ball would be really good for you I think as it can definitely take the pressure off your back because it has the give to it that the floor doesn't. Planks are good for strengthening your core so try them too. Someone else also mentioned Pop Pilates which I have to agree with. There are loads of videos on youtube and loads of core exercises. Look for blogilates.

As someone else said though, you can't really spot reduce. All you can do is eat at a calorie deficit and workout and the fat will come off wherever it wants. Nothing wrong with helping to strengthen your muscles at the same time though. Good luck!

People saying 'diet and exercise' are really not being helpful. She asked WHAT exercise she can do to help tone her stomach and thighs... And I would like to know too as I also have a bad back and can't do sit ups
I go swimming often and that has trimmed me down, especially helps with the legs if you do breaststroke.
Also squats and lunges to tone thighs and bum. Biking, elliptical trainer etc...
You can also just clench. If you tense the muscles in your stomach and hold for say, 5 seconds, relax and repeat it can help tone the muscles in your stomach, and you can do it anywhere like on the bus

An excercise ball might be a good way to help strenthen your core without straining your back too much. There are many different after you get strong enough there are ways to add in weights for additional strength training. I saw some of this style of excercise on the drop 5 show on the food channel. You might be able to get them off of the website.

Pop-pilates has quite a few good workouts for the thighs. As for abs, I would do winsor pilates ab workout. All of these videos can be found on youtube!

I was just going to recommend that! I use youtube's Pop Up Pilates. One of them is a good beginner's workout (trainer's name is Cassie, just search "Pilates for Beginners".) I've been doing her video for a week and feel much tighter already. It doesn't burn much of the fat off, but it's good to know that when the weight drops away, there will be a nice toned stomach already waiting underneath!