Just as players customize their MUSH clients, you may wish to customize your web portal experience. Here are a few tips folks have suggested. If you have other suggestions, please provide feedback.
Ares manages your login information in the browser’s “session” data. That means all your browser tabs are tied to a single character.
Some screens, like forum posts, let you select which character to post/reply from. You can also use the alt switcher to switch between characters registered to your Ares player handle.
When you need to interact with multiple alts at the same time, there are a variety of solutions.
If the style of a given web portal bugs you (say, its text is too small or its colors garish), you can use a browser extension like Stylebot to override the styles.
You can highlight your name in poses using a browser extension like Highlight This. There are others that may be able to do more advanced parsing like highlighting words in quotations (similar to the in-game quotecolor feature).