My mate used daily contacts for weeks until one ripped in half when he tried to take it out and got stuck in his eye and he couldn’t see so he asked me to help take it out but I couldn’t.
Every apartment block has roaches, I'm not naive. But to get rid of the ones in mine I put a teaspoon of borax near the dishwasher kick plate and blew it under with compressed air. Sprinkled some around the perimeter of the cabinet beneath the kitchen sink.
Have not seen a roach in 10 months.
Edit: don't try to bait food with borax, they won't eat it, just get it on the walking paths. You want them tracking it into the hive where they all clean it up like cats and die because to an insect it's like eating knives.
FYI: Simple Green is a cleaner and melts bugs in real-time (ngl, kinda morbid, watching them contort in obvious agony) — with the added bonus of it being prohibitive to the same returning to the area anytime soon. (Pro-tip, I've found it to still be super effective at dilutions of 1:5-10, and a 5gal jug goes for ~$30.)
Oh, and PSA: many common ant species found in homes are "opportunistic" nesters that will split off from the main community when it suffers sufficient losses... Thereby multiplying the fronts on which your battle is fought as well as streamlining their troop production & resistance. 😶 Just sayin'. Do your research FIRST.
Just, don't use it on active acne! Those flare-ups are often infected and that candy-flavored wax stick immediately becomes a conveniently-capped petri dish of your epidermal flora chaos, ready for deployment on new battlegrounds. 🤢
No, I'm a beekeeper, and did a course in microscopy earlier this year. I make slides of pollen and bits of bee. I have another microscope for dissecting bees. It is beyond thrilling to have my own wee lab, with bottles of chemicals and petrie dishes and dissecting tools.
I like to use the plastic wrappers that toilet rolls are sold in for waste bin liners. I don't know about other places, or even manufacturers, but the ones I buy come in a wrapper that doesn't have any holes except the one I tear to get at the rolls in the first place. All I need to do is widen that a bit once the rolls have run out and it's ready for any bin or bucket I might be using.
I'm also using an old shredder bin as a waste bin because the shredder part died. Decided I might as well hang on to the lower part. Perfectly usable receptacle.
I'm not being snarky. That's a bamboo sourced toilet paper that doesn't use plastic and ships right to your door. I like to bring them up a lot because I like the product and the service and the environmental impact.
Carburetor cleaner kills wasps on contact, since we always had old cars growing up and lived in the sticks we also always got wasp nests. I still keep some around just in case. I don't even own a car with a carburetor anymore. They get a good distance of spray too for added safety when dealing with them.
I also use a mosquito and tick repellent to kill ants inside the house, I noticed that if I spray a little in the hole they come out they won't use that hole for weeks.
Surprisingly the combo of citric acid & baking soda makes a reasonable rust remover. I believe it is a chelating agent.
...and yes, it does fizz everywhere when mixing.