Here's a common problem: you land on a Web page you want to read, but don't have time to read right now. Sure, you could always bookmark it for later, but how will you remember to look at that bookmark?
A better bet is to e-mail yourself a link to that page so it stays on your radar. Enter Notes for Later, a clever bookmarklet that does just that.
After you sign up (which involves nothing more than supplying your e-mail address) and click the link in the confirmation e-mail, you'll see two available Notes for Later bookmarklets you can add to your browser's favorites.
Make Note 1 sends a link for the site you're currently viewing, plus the date and time and any text you've highlighted. Make Note 2 does exactly the same thing, but also pops up a small box where you can add notes (which also get delivered in the e-mail, natch).
I tend to prefer Make Note 1, if only because it requires no further intervention: just click it and go about your business. But both versions are virtually invisible; they don't refresh the page or flash the screen or anything.
Notes for Later is free; it works with Chrome, Firefox, Internet Explorer, and Safari. Highly recommended!