Ugh yeah I've dealt with a lot of this crap...
In dealing with a lot of tech stuff, like computers or programming (stuff I've been majoring in) I've had guys ask if I needed help with any of it even though I clearly know what I'm doing and even know more than them. My own boyfriend has pulled this on me when I said I wanted to build a new computer. He's like 'oh want me to build it for you?' ...I've had three A+ courses and could be certified in PC repair if I wanted to, no... thank you. -_-
And then just the way I get treated everywhere for everything is totally different in subtle and not-so-subtle ways. It's annoying and sometimes noticing the behavior of men is disgusting. I never understood them to begin with but now I'm just way over on the other side and can definitely relate to women and what they go through. Just difficult adjusting because I hadn't grown up with it. I really hate noticing the typical behaviors though. So easy to see right through it all. But it's not just with men. Women too. There's a bar I go to sometimes where the female bartender is just ice-cold to me, so I actually prefer the male bartender because he's friendly with me. Which is so lame in a way because it leads into some typical manipulative behaviors. :/
Also with women, I get a lot of compliments on my clothes. Earrings, boots, shirt, whatever. So I've learned to pay it back, and if I legit think someone has nice boots or something I'll let them know.
Talking to salespeople as a couple is just freakin' weird at times. Like anytime they make gender-based assumptions or they treat me as 'the girlfriend', it's weird when I realize I have to play along... but even weirder when I realize that what they're saying is accurate and fitting...
And then my landlord gets all sexist with me sometimes. Says I should do this or that for my man, and I should cook and clean, etc. Plus he doesn't like taking my rent money from me, he prefers my boyfriend gives him the money. Idk, there are a lot of things really.. I try not to think about them too much or it just drives me crazy, especially when I realize it's just going to be like this from now on...