How do you nicely turn down collab requests?

[iMSaiyan]

Say you're backed up on your calender, things you have to do for the channel etc - you don't have time basically.

 

[Henry Gallimore]

I just tell people I'm honored they asked, but I don't have the time in my schedule right now but will let them know if that changes.

I think the best way to respond while keep a good relationship intact is to be humbled and honored as this woman suggested. Be appreciative of the offer and you should be all good. In the end though, when you ask for something you have to be prepared for a no, so anyone's hurt feelings isn't really your fault.