That small leak can kill the transmission if you're not careful. Sometimes those little things can get away from someone very quickly.
Many transmission leaks are not that major a fix other than a torque converter seal. (Assuming, right or wrong, that it's an automatic transmission.)
I'd get the trans looked at before blindly deciding not to fix it. I'm also not a fan of stop leak products and find that in most cases they do not work well or at all.
If it's a torque converter seal and you don't want that expense then carry extra fluid and get in the habit of inspecting and topping off the fluid as often as necessary.
Another PC hiccup and double post. Pardon the clutter.