Chaos Orb is one of the most popular Orbs in PoE, which is commonly used to Buy and Sell mid-tier equipment and miscellaneous items. Chaos Orbs can be generally used to reroll properties on uncorrupted Rares, making it an Orb you will be consuming on a daily basis when you reach the Mapping phase. And the higher your level, the more often you will decide to do it since getting proper and more suitable affixes on your Maps can be very rewarding. It's also a very fun Orb to gamble with - mainly when it comes to rerolling properties on Jewels, Abyssal Jewels, Rings or Amulets, where you can hit a jackpot by getting just a few of powerful high Tier affixes. All this makes Chaos Orb one of the most commonly used Orb in Path of Exile, as regardless of your character level, or activity in the game; whether you are into Crafting or Mapping (or both), you will most likely use a lot of them every day.
Chaos Orbs are quite easy to obtain. Even though they are quite rare, you will be able to find them on most levels including a big part of the campaign. However, you will find much more efficient ways to get Chaos Orbs after you reach level 60. Using the Chaos Orb Recipe is the best way to obtain them. It requires you to vendor full sets of item level 60+ Rares; whereas you are free to use two One-handed weapons and/or Shield, a Two-hander, or a Bow and Quiver. If you use unidentified gear, it will be double the number of Chaos Orbs you get from the vendor. Just by using this recipe can make you a few hundred Chaos Orbs every day you play actively. However, for most players, this method is way too time-consuming, so they may seek other alternatives to fuel their adventure in Path of Exile. You can save yourself a lot of effort and just buy cheap Chaos Orbs on the Odealo marketplace with the use of real money. All Chaos Orbs for sale here are posted by regular players, making it the most secure market for Chaos Orbs, and you can expect the best prices as well.
Chaos Orb can also have another very interesting use, which comes in handy every day for most players. It's the Orb which is it the most convenient to be traded for other Minor Orbs. Simply because Exalted Orb is too valuable, and not many players need thousands of Chromatic or Jeweller's Orbs, so spending anything above Chaos Orb may be a waste (at least in a short run) or you simply can be unable to afford such exchange in the first place. Most players who are into exchanging Currencies will accept Chaos Orbs in those trades without any exceptions so you shouldn't have any issues getting all the other lower-tier Orbs that you currently need. It's always good to have some Chaos Orbs lying around as you never know when you will need them (and that's most likely all the time anyway.
Odealo is one of the best places to supply gamers with Chaos Orbs for their daily needs in the Path of Exile. Odealo is one of the most secure shops for PoE Chaos Orb, where all offers are posted by regular players. It has a form of an open, global marketplace, whereas Odealo maintains the security of each transaction. Here you can sell and buy Chaos Orbs at the best exchange rate and with fast delivery. Odealo supports trading on all available game modes: Standard, Blight League, Challenge Leagues, and for both Softcore and Hardcore players. You can also trade Chaos Orbs on all platforms including PC/Steam, Xbox One, and Playstation 4 (PS4).