I don't believe there should just be unlimited amount a chips you can get in a day - otherwise, what is the point. This was mentioned before (by AbigailII), but will tell you what I think would be good.
Everyone who has less than X chips, get Y new chips (maxed out at X)
So how I would do it:
If a person has under 1,000 chips, they can go to their profile and click on an option to get more chips.
A pawn can get 250 additional chips a day (current lowest amount table is 250, so if they lose a lot - they can still play at least once a day)
A Bishop & above can get 500 additional chips a day
So if someone has 800 chips - they can go to their profile and click "add more chips" - and they will be back up to 1000 chips.
So if someone has 100 chips - they can go to their profile and click "add more chips" - and a pawn will then have 350 chips, everyone else would have 600 chips.
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I would also like to throw out an idea for something to look at in the future. Since some people will just keep gaining & gaining chips forever (well if they are good poker players) - the idea to have "awards" or "prizes" that people can "buy" with their chips. Like a 50,000 chip award where a player can turn in 50,000 chips to get this award to display on their profile (of even little ribbons under the picture on a poker table if they wanted - or a little star on the picture on a poker table for every award that they have got.)
This is just a quick thought - a lot more detail & prizes & awards & ribbons & stuff like that can be thought of... nothing to really do right now, but as time moves on and people start to accumulate more chips - it's an idea to help "remove" some of the chips from the system... and reward the players who achieve it at the same time.