Oh yeah feel you with the slow creep from casual photography to full on 'must collect and raise everybody i find!!!' Next you will find yourself wasting hours each morning staring obsessively at your bug eggs to catch the exact moment the baby wasps start chewing their way out hahaha, and you will regret nothing :) I've been pretty into little plastic containers you get for glitter/makeup powder for on the go collections lately, as you can get a pretty good photo through the flat topped lids (my set up is a microscope with a mount on the eyepiece for my cell phone camera). But I love the idea of the larger glass box so you can create more of a backdrop and get shots with your macro camera! Definitely share some photos here of your set up as you work it out!

For the invasive ones, yeah best to put the whole bag in the freezer after you get your shots, but then id just toss the whole ziplock bag, leaving it sealed, into the bin rather than toss the contents back outside, just to be safe. That's how I disposed of all my samples when I used to do big survey loops, rearing on the go, and didn't want to spread things around.