Here's something we can all agree on: We could all use some extra cash. And side hustles are nothing new. Whether you're single and just need another small source of income to pay the bills (or pay for your next vacation), or you're a mom who just needs to get out of the house and flex your mind muscles, going part-time with a super-flexible job is likely something you've considered before, but didn't know where to start.

To make your search easier, start here: these 11 jobs flexible enough for moms, that allow you to not only get extra money in your pocket fast, but also allow you to set your own schedule and work as many or as little hours as you'd like.

More: 22 High-Paying Part-Time Jobs so You'll Have Plenty of Spare Time

1. Realtor or appraiser

Real estate agents set their own schedule but typically must be available on nights and weekends. This is ideal for women who have partners who work 9 to 5 and do not want their children in day care. An appraiser determines the value of a property based on comparisons of similar homes and an evaluation of the property itself. Though both jobs require certifications, both are extremely flexible and offer competitive pay and benefits.

Realtors typically make a salary of about $51,000, and appraisers make around $61,000 a year.

2. Accountant

Ideally, you’ll need to have at least a bachelor’s degree in accounting but can always start out as an assistant to someone first. A career in accounting is one of the most-stable careers you can have — which is a top consideration for working moms. With accounting, you can work for yourself (for example, preparing clients' taxes), work for a company, freelance or work part time.

The average salary for an accountant is $49,749 per year.

3. Hair dresser or makeup artist

Because beauty likely won’t ever disappear, there’s always going to be a need for beauticians (hair dressers, makeup artists, aestheticians and more). Beauticians can work from home, work out of a salon, take time off when needed, set their own hours and work as much or as little as they’d like. They can also specialize in weddings or other formal events, which typically pay higher rates than strictly working out of a salon.

On average, a hairdresser, hairstylist or cosmetologist makes a little less than $10/hour.

4. Server

Maybe you’re looking to get out of the house for a bit and earn some extra cash. If so, consider being a waitress or bartender, as both make money instantly in tips. The average pay for a server is $5.30 per hour.

Also, most restaurants are always in need of weekend servers, so you can plan on being home with your family during the week and pick up shifts on the weekends.

5. Virtual assistant

Have serious organizational skills? Consider being a virtual assistant. Tasks can include sending emails, organizing travel and other administrative tasks for entrepreneurs and executives. Pay varies and tends to average around $15/hour.

Next: Retail associate

A version of this article was originally published in January 2014.

6. Retail associate

Maybe, as a mom, you just need to get out of the house for a few hours per week. Sometimes, a short break every now and then is just what we need to parent to the best of our abilities. If this is you, consider getting a part-time job in retail. You can work for a small candle shop, a jewelry counter in your favorite department store or at a local coffee shop, for example. Though the pay isn’t necessarily the best (the hourly average wage is $9.52 per hour), the flexibility and the time away from home may be priceless.

7. Fitness instructor

If working out is one of your top priorities, consider becoming a fitness instructor. You can teach as little as one class per week or become certified in a specialized field, such as Pilates, and teach private lessons along with group classes. Group instructors can average $19.75 per hour, and private instructors can charge significantly more per hour depending on credentials, location and types of clients.

8. Small business owner

Are you crafty and have a passion for baking, making jewelry or blogging? Hone in on your talents, and open up your own small business out of the comfort of your own home. Etsy, for instance, lets you create your own little handmade shop on the worldwide web. You can also sell your services via a personal website, advertising and referrals.

9. Tutor

Whether you do it locally or remotely, tutoring can be a great way to earn extra cash. There are several places you can tutor online, including Chegg, K12 and Tutors earn an average wage of $17.28 per hour.

More: Researchers Just Found a Bias Against Female Job Seekers You Wouldn't Expect

10. Nanny

If you’re at home with your own kids all day (and love it), consider being a nanny for someone else’s kids or starting your own at-home day care. Both options allow you to stay with your own children and bring in some additional income as well. Median pay for a nanny is around $14.54 per hour.

11. Freelancer

Freelancing goes beyond writing or editing, which are what most people think of when they hear the word "freelance." Freelancing is simply working for a company without a long-term commitment. Basically, you work as an independent contractor, usually from the comfort of your own home. You may be hired on temporarily to complete a project, assist in grant writing or bookkeeping and more. While it isn’t the most stable of jobs, it is one of the most flexible, and freelancers often make more than $20/hour.