Skip on over and check out Tay for other tips!
My 2 tips are weight-loss related because I'm all about it right now.
Switch it up! I get easily bored at the gym. 20 minutes running, 20 minutes on legs, 20 minutes on arms, blah blah blah! Interval training is the way to get a great heart pumping workout and make the time fly. Also weight training is the best way to make your body work for you on your off days. If you click on the links they take you to my favorite online resource Trainer Momma, she breaks it down for ya!
Count your calories. I know it sucks and I dread doing it, but seriously it works. Now because I suck at it what I do is write down everything I eat for 1 week so I have an idea what I'm sitting at. Like yesterday I only ate 1570 and burned 995 working out. That's not enough for my body to run on so in the end my body holds on to my weight and I've done all that sweating for nothing. Now I know and can adjust my eating and get back on track. Wonder why the weight is not coming off? This will tell you :)
and don't forget to drink your milk :)