I don't want to kill them but I'm afraid that if I don't, they might creep into my butthole. :(

Probably a few hundred to a thousand or two

I just read that for every human on Earth, there are 17 million flies - just flies. Anyway there are important questions here - first, location matters! I'm just going to assume a temperate climate, I'll bet it's more in tropical climates, also are we talking intentionally with the rolled up magazine or ALL deaths directly caused by you (like running over beetles in the driveway) assuming all deaths, I'm going to say at most somewhere between a couple per day and a couple per week, let's say 500 a year just for easy math, times let's say 20 years and we've got 10,000 insects smushed

I kill like 2 mosquitoes and 3 ants a day, and a year has 365,25 days on average. A person living for 100 years will live 36525 days, so we multiply it by the 5 dead insects daily and that gives us 182625 killed insects. As most people won't live for 100 years, we can multiply that big number by 0.7, which equals to 127837

Many millions I assume.

I bumped into my neighbour yesterday picking out black ladybugs and putting them down the drain where apparently there was a large spider... guy had like 80 lady bugs in there already... I don't know if he's weird - but he's likely killed tens of thousands in his lifetime and he's like 27.

Probably hundreds. O know I have, I've lived in some nasty places. It was like starship troopers in the bathroom.. :D

50 million.

Don't make me think of them, please! Brrrrr

38,243.5 (the .5 is for the ones who were partly crushed but survived)