The tool SteemReply is a novelty for me. I discovered it through some comments which my friends posted under my articles. Big thanks goes to 
In short, with SteemReply you can handle at one place:
- all unanswered comments under your posts,
- all mentions of your account.
You can check them, reply to them, upvote them.
It is quickly becoming my second favorite tool, closely behind SteemWorld.
Look at this screen shot:
On the left, there is a comment. On the right, all related content is displayed and ready to comment and/or upvote it.
How cool is this?
The official announcement of the tool by 
Start using it :)
Join Actifit program, stay fit and earn crypto - STEEM, AFIT, AFITX, PAL, SPORTS, ...
Vote for Actifit as a Witness
Official Actifit links: Discord | Website | Android app | iOS app | FAQs | Text Tutorial
Disclaimer:
I am a long-time Actifit user and ambassador for the program. Please, ask me anything about it.