the reason I mentioned this is because I am doing contracts for a large corporation and in the contract agreement payments from them are net 60,so I offered 2% for payment in 15 days and they accepted.I will now add this in to my estimates in the future.
I think if i wasnt so new at the business game i would not be doing this, but i am working alone and these contracts are taking most of my time and for now are my biggest form of cash flow.