If you get really into juicing, it may pay for you to invest in a juicer. Maybe try to get a used one on Craigslist. I got a used Acme user and it's wonderful and it makes juicing so much easier. Adding carrots to a juicer is easy. You can add a beet too to your veggie or fruit juices or anything you like: apple pears spinach cabbage. A clove of garlic to boost your immune system. Soemtimes you can add a nut butter like almond to your smoothies for taste and additional protein. There also a great smoothie made with orange juice raspberries papaya and mango, a great summer drink.
Good luck have fun and experiment!