This is my method of reminding discussions here.

@sjvg1976 (41131)
Delhi, India
March 27, 2017 2:40am CST
Sometimes when an old discussion pop up on "my recent activity" or "top discussion" and you forget that if you had replied in that discussion as it's tough to know if you are doing mylot on smart phone , you have to do lots of hard work in scrolling down and checking all the responses. To avoid it what I do is I don't forget to give "like" on the discussions I respond and that way it's easy for to know if I replied on it or not in the past. What you do ? Do you scroll down and check your response if you made?
6 people like this
8 responses
@allknowing (130064)
• India
27 Mar 17
If we have responded our response comes right on top.
3 people like this
@allknowing (130064)
• India
27 Mar 17
@sjvg1976 Take for example my response to your this post. It was right on top. Just check any response of yours to any post and see where it is placed.
1 person likes this
@sjvg1976 (41131)
• Delhi, India
27 Mar 17
Is it so I am not sure
1 person likes this
@sjvg1976 (41131)
• Delhi, India
27 Mar 17
@allknowing this is when you go through the notification I think.
2 people like this
@Sreekala (34312)
• India
27 Mar 17
I respond to a topic after pressing the 'like' button for sure. At the same time when I read a topic I can remember well whether I responded to it or not. So there is no such problems for me. Moreover, I am doing mylot in my desktop.
3 people like this
@sjvg1976 (41131)
• Delhi, India
27 Mar 17
If you do it from your desktop then I see there is no problem in scrolling down and check your response. If you try it from smart phone then you would know the actual problem
2 people like this
@Sreekala (34312)
• India
27 Mar 17
@sjvg1976 I have told you I am pretty good on remembering if I responded to a topic
2 people like this
@sjvg1976 (41131)
• Delhi, India
27 Mar 17
@Sreekala that's okay then. I have lots of problem so I found out nwe way to sort this out
2 people like this
@ptrikha_2 (45514)
• India
28 Mar 17
Well, I press "Like" on almost all responses- may be due to an old habit I have since my starting days here of 2008! But yes, that does helps.
1 person likes this
@jstory07 (134391)
• Roseburg, Oregon
27 Mar 17
Sometimes I do forget so I do scroll down to see if I left a respond.
2 people like this
@sjvg1976 (41131)
• Delhi, India
27 Mar 17
I don't that as I find it tough to do
1 person likes this
@imravi (2337)
• India
27 Mar 17
The same goes with me as me too like the discussions on which I give my response.
2 people like this
• Kolkata, India
28 Mar 17
Till now it never happened as such. I am new over here, and till date I haven't forgot the discussions I have replied to, may be after few months I will also have to take up some means.
2 people like this
@Shavkat (137212)
• Philippines
27 Mar 17
I also do same thing. I need to scroll down using mobile phone.
1 person likes this
@ilocosboy (45157)
• Philippines
27 Mar 17
Yes, I scroll down. And yes again, I like the comment to more myself that I responded on that.
1 person likes this