Electrical Goods are usually just thrown out and a new product is purchased. Corded and cordless irons are a big offender and should either be disposed of in an eco-friendly manner or fixed/reused to increase their lifespan.
There are plenty of repair shops that will take your appliances in, in an attempt to fix them. Sometimes electrical appliances such as irons can stop working due to a simple fault. If this is the case your local repair shop should be able to fix the issue increasing the Irons lifespan.
In some cases, the appliance repair shop may also take the iron from you or even offer you some money for it as they will be able to either fix it or dismantle it for parts that they can reuse in other products.
Your Iron can also become clogged up and in need of Descaling. If this is the case you will want to descale your iron:
Contacting the manufacturer can be a great opportunity to recycle the iron. Some manufacturers offer a recycling scheme that allows you to send them your product for disposal. Some companies will reuse these parts or they will just dispose of them properly.
In some instances, manufacturers will also give a discount on newer products if you are looking to get another iron from the same manufacturer. This can be a great win-win for both the environment and you.
If you are looking to get rid of your iron you will want to contact your local waste management department. They will advise you on how to dispose of the iron correctly as some dumps/tips will not accept electrical goods. As you are not able to throw the iron straight in the trash, it's always best to seek advice on what the most eco-friendly way of disposing of is.