How about a "favourite tool" bar?

[metteottosson]

I use pretty much the same basic tools in all my images. I would LOVE to be able to save personalized favourites in a top bar or something, for example different "dodge brush sizes" and just click on those directly the next time, instead of clicking through the menu, size, opacity and so on. This would save so much time!

(unless there is one and I have missed it?)

[D Fosse]

There is one and you've missed it...Edit > Toolbar.

It's still the main toolbar, but you can bring out the "hidden" tools and give them their own space, and put your most often used tools at the top.

[metteottosson]

Hi! Thanks a lot, that's a great feature! I meant one step further though: not only the tool, but also the setting of it (size, opacity and so on). So you could for example keep three different brushes next to each other!

[D Fosse]

That falls under the brush settings. You can save brushes with those properties.

[metteottosson]

And save them to an easily accesible favourite bar? 

[D Fosse]

The brushes panel.