I/we don't have one. We discovered long ago that buying presents for one another usually resulted in buying an unwanted/unneeded item. Even if we were to put an item on a list, it would probably be the wrong size, color, or function when received. After several years on dealing with returns, we gave up.
Marrying my second wife late in life, we have the maturity to buy with reason. and if we feel we want or need a particular item, we are free to buy it at our discretion. I have lists of all kinds of neat tools that I would like to add to my arsenal I seldom act on that list.