Anyone work out twice a day?

I usually run 4 miles in the morning an then do a T25 workout at night. usually burn around 1000 calories between the two. I say go for it.

Obviously Calories in versus calories out is your key to weight loss.
Obviously More Cardio will increase your fitness.

I like to do the intervals on the stairmill in the AM for about 30-45mins and then i usually lift for about 45mins-1hour depending on what body part I am working in the PM. I find that splitting it ups makes me work harder at both and I think that helps in my weight loss.

Yup I typically work out 1st thing in the mornings (3-4 mornings/week run, 1-2 mornings/week lift) & then again over my lunch break (almost always lifting).

I've been doing it for 3 years now. I lift 5 mornings a week at the gym (Mon,Tue,Wed,Fri,Sat), and then I will usually run or bike at work 3-4 times a week, and once more on the weekend. It will definitely burn more calories and as long as you get enough sleep, and eat enough to keep your energy level up, you will be good.

that would give you a total of 60 minutes which is fine...

Ultimately you have to be careful not to overtrain, but two-a -day sessions that result in a total of 60 - 90 minutes isn't really going to be a big deal. If I were you, I'd focus each session...cardio session and a resistance training session. More bang for your buck and it's likely that your strength/cardio sessions are more cardio heavy. Resistance training is actually going to give you the body you're after (or the one most people are after)...not cardio upon cardio upon more cardio.

I think you're fine..just maybe balance out your fitness regimen a big more. If it were me I'd spend about 45 minutes just working on resistance training and core work and then another 30 - 45 minutes of cardio completely separate. Also, you shouldn't be doing resistance training on consecutive days unless you're working different muscles/groups of muscles..which is pretty inefficient for a novice. You'd be better off with a full body routine a few times per week. I'd suggest looking into New Rules of Lifting for Women (I like the entire series and am currently doing New Rules Super Charged); my wife really enjoyed NROL4W...or Strong Curves seems pretty good too which is what my wife is currently doing.

I think you're going to get the best results following tried and true programming where it comes to your strength/resistance work. You could do something like:

Monday - Heavy Cardio 45 - 60 minutes
Tuesday - Resistance Training 45 AM. 30 - 45 minutes lighter cardio afternoon
Wed - Same as Mon
Thurs - Same as Tuesday
Fri - Same as Mon/Wed (or Rest)
Sat - Same as Tues/Thurs
Sun - Rest

I walk at lunch with a gal I work with for about 30-35 minutes (good for about 200 calories) and three times a week, I'll run 3-5 miles (400-600 calories) once I get home after work. Plus I run stairs to the top of the building on my morning and afternoon breaks (I don't track calories for these).

I like to do 2 Vinyasa yoga classes back to back. It doesn't effect my energy level (I also have two kids) and it is SERIOUSLY effective!! The weight is dropping off! Maybe look for a yoga studio near you so that you can do your normal exercise in the morning and yoga in the evening?

Congratulations on your weight loss! Your progress chart looks awesome!

I ride my bike to work most days, so that's 45 in the morning and 55 in the afternoon (slightly uphill going home). I can't do five days in a row, but M-T, Th-F works pretty well. I love it. The morning ride wakes me up and sets up the day; the afternoon ride is hard and works out workplace frustrations, stresses, etc. I'm thinking about supplementing the morning ride with a short weight routine before hand, or doing weights on the off days.

It has helped with weight loss a lot and leaves me feeling fantastic. I am very tired when I get home, but never so much that it prevents me from doing household chores or other activities.

I encourage you to go for it. It's pretty hard for the first couple of weeks but your body adjusts and you will start to feel great, and start hitting goals that might have once seemed out of reach.

I work out twice... a week. My workouts are very rigorous and my body needs the time to properly heal and recover. Occasionally I increase to three times a week just before I'm about to jump up to significantly heavier weights.

Can't imagine doing any sort of serious workout twice a day, but it all depends on your workout intensity.