Every now and then there’s a really good thread on /r/askreddit. This is one of them. Featuring gems such as:
Just Watch - A search engine for streaming services.
10 Minute Mail - Gives you an email address for 10 minutes. Avoid spam etc. when signing up for stuff.
Icons for everything - Free icons.
Super Cook - Add the ingredients you have, it’ll give you a recipe
Wifi everywhere - Wireless passwords for places all over the world, including lots of airports
Check it out. It’s a goldmine of info.