I’ve always been the kind of person who loves making notes of things. Back in school I used to have a separate notepad and a pen. But now just a smartphone full of apps is enough to do pretty much everything. When it comes to taking/creating notes, recording audio clips for future reference, web clipping, etc,
Evernote is probably the best. You can either download it for free or upgrade to a premium account for a cost. The main difference I felt was that the storage limit is 60mb for free users and for premium users it is way up high. But if you just need it for taking or creating notes that you can refer to, then I would suggest to just create a free account.
Bookmarking web pages is also a useful feature, earlier I used to use Pocket for bookmarking but now it is only evernote. Most of the days I get so occupied with things that losing a track of everything I was suppose to do becomes easy. In such cases, it is always great to have evernote, it is like digital version of a notepad with several other cool features.