With just 25 bulbs I'd say stick them in a large tub or a square metre of garden soil asap though you don't say where you are? They need no special treatment as long as the soil is moist but well-drained

Best planted in clumps of about 8, unless you want to mass them altogether, which is also fine.Just make sure you plant them at the right depth, as it details on the pack, and plant them asap... daffodils are best planted early (end of August) but unless your bulbs are shrivelled, dry or mouldy, you should get some sort of display next spring.