You can recycle your watch battery by visiting your local joint battery recycling center. California has different regulations than other states and will request that for proper recycling the battery must have the "three chasing arrows" symbol.
To get rid of used batteries contact your waste management company. They'll send over a special collection crew to dispose of batteries.
The best way to dispose of you lithium batteries in a safe manner is to recycle them at your local recycling center. This works with all batteries and other electronics. If your local recycling center does not accept electronics they can be picked up by your city's designated household waste disposal day's or garbage days if you prefer.
Batteries are considered hazardous waste. Sometimes your disposal company will have a certain day that they will come take care of hazardous waste. You can always bring them to a recycling center as well.
Mainly all laptop are power by a cord. Usually its the kid version laptops that can run on batteries, but not the professional ones.
That will depend on where you live. Batteries can be recycled, so a recycling center should accept them. In California, batteries cannot be thrown away in the trash, so most curbside recycling services will accept household batteries. Talk to your local trash collection service to see what they recommend.
The best way to dispose of a cartridge is to recycle it, if you are not able to get a refill for it. You will take it to any recycling facility to dispose of it.
The safest way to dispose of legal drugs is to take them to the police department or flush them in the toilet.
eat them
The best way to disspose of it is to throw it in the trash in an oder proof bag.
They should be dropped in a battery recycling bin. Such bins often exist in or near electronics stores. Make sure they accept alkaline batteries. Some only accept rechargeable batteries. Using rechargeable batteries can save you money and greatly reduce the number of batteries you need to dispose of.
Do not let the battery run down until dead. This shortens the life of the battery, especially car batteries. Some lithium batteries, such as for laptop PCs, this is actually good for the battery, but that's the exception.For a vehicle, boat or motorcycle, keeping the battery charged on a trickle charger to maintain 100% charge is the best way to extend the life.
There is software that will overwrite data on the hard drive. Personally, I would dismantle the laptop, remove the drives, strip the drives and smash the platters. There is little value in selling old computers.