Every penny counts, but there are some circumstances to consider. First of all, Bitcoin isn't really suited for many small donations. I guess I could setup a changetip account which will avoid all the on chain consolidation, but suddenly I have to dedicate time to that stuff. I like to take my time and weight out each option properly, and I just don't have the brain cycles to deal with that atm.

Next, I won't setup a donation address until I'm happy with the level of my contribution. Currently I don't want to think about that until the new wallets are out.

There are other ways to contribute besides direct donations.

You could petition Theymos to get me or a veteran member elevated to moderator. It would be very useful to be able to set stickies on this sub forum.
You could participate to testing phases and review code.
If that's not your cup of tea, you could write tutorials for Armory.
You can also try to isolate and reproduce specific bugs and report your findings on the issue pages of the github repo. This would drastically reduce the cost of fixing the bug on my part.
If you have some web design in you, I would consider setting up a gh-pages branch and merge in yours PRs. This project could definitely use a webpage. It would be pretty cool if it was community managed too.