Here is my small mod idea: When you build up/keep up relationship with multiple different villagers it is a little bit tedious to memorize who you already talked to this day/week. It would be great if someone add 2 additional indicators on the relationship tab for each villager for this. P.S.: I will try to do it myself, but I do not like C#.
Well, personally I just used the gift markers. Talking to them doesn't really give that much and not talking to them only loses a tiny amount each day -- so just talk to and gift everyone twice a week and call it good.