Does either of you use any particular techniques to control the proliferation of wands and scrolls in your games?
I don't purposefully do anything to control it. Yet there are two factors that help keep it in check: time and money.
There is seldom enough money to make all the magical items that everyone wants and our wizards seem to have a propensity for enchanting swords. I guess I tend to be a bit sparing on treasure. I don't point out where all the treasure is, they have to find it and sometimes, if they are in a hurry, they do not loot every body and they miss things. This keeps them just at or under the expected wealth per level. Wealth is also often found in items, not coin, and as often as not, if a particular item seems useful, they won't sell it. (A fancy chair owned by the evil duke worth 3000 gp will as likely as not end up in a PCs living room.)
I also control the ability to easily buy and sell items to some degree, especially buying magical items: there is always a waiting period for high end magical items (generally made up on the spot). "You want xyz? Sure the merchant thinks he can find one, he'll let you know in a week." "The merchant found an xyz, and if you pay him now, he can have it for you in 3 weeks." This plays into the time part of the game again, forcing the players to allocate time as well as resources.
Additonally, in relation to time, crafting items takes time and so long as the story is moving along well, often there is not the time necessary (or taking the time is percieved to have negative connotations). In between episodes, sure there is more crafting, but again, the amount of resources available (and the penchant for saving up for really big purchases) helps limit what is made.
As well, when it comes to fashioning wands, a lot of times the casters, in actual game play reason as follows, "Why spend the money on a wand of find traps, when Kyle is so good at finding them on his own. I should spend the little money I have on something else instead of wasting it on something we don't actually need."