Yes, you can do that. Me I use portableapps for a lot of other software as well, so makes sense to plug that in.
Much like you I go for very long generated passwords, longer and more random the better.

correcthorsebatterystaple and you're good to go.

Indeed. Even the launcher works in Linux as well.

It's funny you should say that as I;m going around with one of the softwares I have to use where they;ve removed the option to see what you're typing on the username and password. As someone with a tremour, if I can;t see what I;m typing, it sometimes takes a dozen tries to login. The company is defending their stance as a security measure. I;m responding what that up there.
Reference in case that goes over anyone's head:

https://xkcd.com/936/

Unfortunately if you md5 hash that and go looking:

https://www.google.com/search?q=e9f5bd2bae1c70770ff8c6e6cf2d7b76

It's on a few lists. :)

For the hosting, we have an offsite SVN/ Trac install and the server passwords are on a wiki page there. Of course each of us have to log into each server with our own passwords first to get to the prompt to be able to do anything.

Unsurprisingly.

I simply use 12345, nobody ever guess that...

i simply use "password", much easier to remember than a number ;-)

Sounds like something an idiot would use on his luggage...

Edit: Oh shit, I see you already made that reference.

I was just coming to post this here:

https://xkcd.com/936/

Never use a password on anything meant to stay secret. Use a password only on something not worthwhile keeping secret. Like a joke or a fortune cookie statement. In that way, a person who cracks the password will have something to smile about.

I always use "password" as my password, so when they tell me to write password I cannot forget! XD

... could actually be a pretty good pw.

I hadn't thought of that.

That gets me imagining a movie scene where someone opens a fortune cookie from Chinese take-out to get the password for a secure system. I mean that would be how a secret agent receives the password, in a fortune cookie. But it'd still be a real fortune, like any other.

But then when trying to type it in it doesn't work the first time. Second time the agent is shown pressing the spacebar while typing it again, to emphasize the difference in the attempt, but that too fails. Then the agent presses the caps lock key and the light comes on, types it the third time (also with spaces) and it works. Because the fortune was shown to be written in all uppercase letters.

Not to say that ever happened in a movie. Just that I like the idea of such a scene.

Your passwords are only safe in a password safe :P. Pun intended, but it's what I've been using for ages - you only have to remember the master password for all intensive purposes and of course you have to carry around the app with you, but most of them also include a password generator and a cryptographic strength checker.