Those weird bulbs are called compact fluorescent lamps or CFLs. They are energy-efficient light bulbs that contain a small amount of mercury, which is toxic to humans and the environment. they should never be thrown away in the household trash.
Your local dump or transfer station will (usually) have an attendant who knows how they deal with them.
Perhaps I'm talking from the European perspective but over here every supermarket and convenience store has a battery and light bulb recycling box. Can't imagine it's much different in the US.
You can usually call or check out a website rather than driving. Most people save them up, then take them all at once or take them when they are going there anyway with other stuff to dispose of.
Also be really careful if one breaks (get everyone out of the room and air it out first).
That's a great question, thank you! It made me dick (edit: standing by my mistake!) a (tiny) bit deeper. I took a different perspective and the tldr is:
Do you want to kill specifics? I.e. local plants, animals, water poisoning, etc - then mercury is the winner!
If you're after killing via global temperature variation then the car is.... Well... Killing it.
But on a serious note: both are bad but depending on how your local trash is handled those small bulbs could actually have an impact, most likely via the water chain.
If those are the two options I had I would just store them like OP. But then again where I live most shops take those back to recycle them properly.
Thanks again for the question, I had a fun few minutes!
CF bulbs have some mercury in them and need to be disposed of properly. DO NOT put these in the trash!
I took mine to the collection box in the customer service / returns area at home despot.
ETA: I think I am now rid of all the compact florescent bulbs in my house. LEDs are now cheap enough that I'll get rid of good CFs for the energy savings.
Only problem I have had with LED lights is they stop working after maybe 6 months whereas the CF bulbs would go for years. I have CF bulbs in fixtures that have been working since before I got my first LED installed. What has your experience been? What brand of bulb are you using? I am willing to pay more for a bulb that will last.
Some cities are now using a service from ReCollect that let you figure out how to dispose of most materials, you could look on your smartphone if there's literally an app for it.
It even comes with your waste/commpost/recycling collection schedule, reminders, etc.
That kind of hazardous material such as CFL lightbulb will likely require special handling, so for that kind of stuff I keep a box for those items I can easily dispose of, that I'll bring to my local ecocenter when it's full.
Granted this and another post here has me wondering how sincerely they are made but anyway you can't take anything for granted nowadays as different recycling providers will take different things and some stop taking things so you need to check their website like once a year. for example here is mine https://cdn.wasteconnections.com/cms/groot-west/Groot%20Recycling%20Guidelines.pdf
Yeah just go ahead and put them in the metal / glass / plastic recycling, they will figure it out on that end with all the others that get thrown in there.
They contain mercury and are hazardous waste, not recycling. If, or rather when, they break they will contaminate everything around them and are a healthy hazard. So, no, definitely not curbside recycling.
There should be drop off points in many big box stores for this kind of stuff.