I've seen a ton of posts about everyone's item storage being full so I thought I'd give my two cents on the matter.
You can actually keep a daily streak with a full item bag. You have one chance per day to get a free raid pass from a gym so if you spin a gym with no active raid or spin a gym with raid you just completed, you can spin the gym stop to get the spin and the pass. However if you have used your daily pass and click on a gym with a raid, it will automatically give you the pass and you won't be able to spin it. Can work once per day or multiple times during a raid day.
by Ninzilla