Expiry Alert limited to a single date

Just adding my vote for the ability to put an expiry alert on any/all date fields (that is, including multiple fields in a single item).  I've wanted this before, but my most recent use-case was inputting the various renewal dates for my email provider:  main account renewal, (2) different sub-account renewal cycles, domain/whois-privacy renewal.  Four different renewal dates, which are currently -- sadly -- on three different renewal cycle periods.  I'm handling it by adding notes to myself to remind me that after I process the first renewal, I should set a new expiry alert on the next-up renewal.  Should work, but klunky.  It would be much-preferable to be able to set independent alerts for each of the individual renewal cycles.