Need to implement:
- How to add place to a specific day.
- front: using autocomplete or infowindow?, can the places drug and drop?
- back: add new placeId to specific day (schedule[index])
- Do we need a save button?
- to update the data in mongo?
How to do? Do we need user photo?
- Home can see: my own post, but hasn't come yet
- Explore can see: every one post can be seen
- Friends can see: my friends' posts
- My profile