See if and how well you can predict the future.
A website where people can write their view on how the future will be and in what time frame. It’s like a public reversed time capsule. Each user will get an alert from time to time (they can decide the frequency, but maximum once a year) to check their prediction and add to it their new thoughts. Others can comment on their prediction and discuss it, and anyone can share them.
You sent an email to your subscriber (as part of an automated sequence), and he still didn’t open it. Get him to open it next time he’s active online.
Show him a reminder with a teaser about what’s in the email you sent him. Either use a dynamic retargeting ad on the web or even a dynamic pop-up on your site.
You would like to buy a currently unavailable item from the store.
Get an alert when it’s in stock or going to be in store. Just send a message to the store’s special number or email address, and you will get notified.
It is useful to “collect” other people’s mistakes – what they did wrong and how they failed because of their bad decision. It’s easier to attribute a single mistake or bad decision to a failure, and it’s easier to analyze someone else’s mistakes.
An alert service that notifies you when there is a new mistake related failure to report about. You get the story and analysis and can file it for future use.
If you travel to many places, you probably have many currencies put aside for your next trip. It would be good to get an alert when a particular banknote is being retired.
A service where you can choose which currencies to watch and receive alerts when there is a banknote being retired, so you can take measures.