I get that I live in an expensive country etc, but seriously, $15-30 for jeans? Cheap jeans here will cost me at least $70, probably more. I honestly don't think $30 is expensive for a t-shirt (and I do not spend a lot of money on clothes), so to spend that on jeans and get a decent pair, even? Crazy, I tell you!
Also, the hatred against shorts? I'm definitely not a part of that. Not that I like to wear shorts myself, mainly due to massive legs, but whatever - if it's hot enough, I'll wear them. Shorts can look great if you have the right shorts for your style and/or body! And honestly, if someone wore pants when it was insanely hot outside and told me it was because "shorts look ugly", I'd have to try very hard not to laugh at them. I was going to post some examples of great outfits that include shorts, but I think my folder for cool outfits/future clothing inspiration has shrunk without my knowledge, and Sam posted a good one.
Fitted shirts (not skin-tight, but not wide enough that you could put both of your arms inside it) instead of wider ones can make a lot of outfits look way better.