After reading rjbs' post on Promoting little gifts I remembered various gifts that I received from the users of my modules. For example I received a ebook from Jens Gassmann for working on PocketIO and today I got a thankful note and a donation from http://privytalks.com, the website that uses the same PocketIO in production (scary!). Funny that I can use something that uses something I wrote.
It's always nice to receive thanks and gifts. Thank you!