You could get the vacuum out, but its a lot of hassle. On the other hand you could get a dustpan and brush, which is messy and just plain old fashioned. Ideally you need a little vacuum cleaner without a messy mains plug and no bag to change.
The sweet little piglet and cute moocow do exactly that! No cable to get in the way, and to empty them you simply press a button and tip the crumbs in the bin. Easypeasy, and very useful!