[tpv]

I think you're over analyzing OP's question. He didn't ask for some specific business plan and obviously he wasn't thinking anything big.

An answer could be anything as "getting a coffee once a week", "potluck to fix the office's X/get new office X", "stop sublime from notifying you haven't bought the full version"... infinite number of things.

[brudgers]

Sure, I'd pay $5 to have a $4 cup of cup of coffee delivered to my desk. Or $5 for all the functionality of the $70 version of Sublime Text. To put it another way, I'd pay $5 to solve the problem of not having $10 or $11 etc.

On the other hand, anything for the office has to be worth $100's of dollars before it is worth pursuing. Other wise the productivity lost obtaining and installing it is less than the value.