I hope you don't mind me being more forward and direct with these next few suggestions.

$30 (~15.95 Keys using 1.88 as the Keys' value). This information is crucial, yet it's missing from every suggestion you've made recently.

I'll accept the suggestions you've made so far, but you can consider this as a formal warning. Any future suggestions missing the proper math for the cash-to-key valuation will be closed for insufficient evidence.