Depending on the season I volunteer anywhere from 5-20+ hours/week for AOII on the local level. Trust me, it's worth more than cold hard cash any day
I have donated plenty of gift items for recruitment giveaways, goodie bags, etc to my own collegiate chaper and to the local collegiate chapter(s) over the years. Couldn't tell you how much I've spent on these types of donation, though. When it comes to recruitment support, it's a lot easier to make a "stuff" donation than giving a "cash" donation! Now that our local alumnae chapter is active and official again, I'll be paying local alumnae dues and serving as a committee chair there (in addition to my other local AOII work).
I'm also a dues-paying member of our AOII Always program for alumnae. I also make a small annual monetary donation to our Foundation.