When working with Invoices, I have noticed that when you create an Item to add to an invoice, there is no way to delete it after you create it. Over time, this can lead to a long list of items and get bloated as your business changes its offerings.
I've also noticed there is no way to delete a Project once you create one. If a Project gets cancelled or you are just testing out the feature, there is no way to delete it, unless I am missing something.
I think it would be ideal to have the option to delete these things so we can keep everything organized and clean over time.