The dropping method is normally easier, but when dealing in as many Bells as we are, it's much easier to do Re-Tail, cause the Bells will move directly from my pocket to your savings account as opposed to having 100 bags of money on the ground, lol.
Pretty much what you do is go to those spots in Re-Tail where you can put items up for sale.
Put some normal flowers there with an asking price of 999,999 each. (This is also used to keep villagers from pawning off their furniture)
When I come to your town, I just go to each of the spots one at a time, buy the flowers, then plant them outside or whatever.
Of course, I'm still gonna have to use the ABD though, since I won't have enough pocket room, but things should probably go relatively quick. If your villagers have some items there, you'll need to buy them before you can use that space, but I can reimburse you if you want.
I'm actually gonna head out for tonight, but I should be able to trade with you tomorrow or the next day.