Like you, we feel like St Valentine’s spirit is not necessarily connected to expensive gifts, but extra personal and well thought details.
for alternative-gifting why not consider gifting books this year? Although, books do come from trees, the experience of reading from a book is something that is unmatched. And if you have children, nieces, and nephews that have not yet developed a reading habit- books could be a great gift. They would be a much better option than a set of socks, however fuzzy they are.