HODLing.. To me, HODL is becoming a big meme. Try to ride the waves on good solid coins. The main ones that seemed to show promise are the ICOs with great organisation and idea, as opposed to the best marketing strategy. ICOs like Rentberry bring the ideas of long-term leasing to the blockchain and MeVu brings the idea of a great idea in this blockchain trading scene.
Usually, the problem with ICOs is the fear of people thinking "will they actually follow up on these ideas?", or the commitment of the team to the project. To me, pick teams that are transparent on social media resume sites etc and this wont be a big of a problem.