Sachs - why do you have to be a mug to take advantage of a buy one get one free offer. If it's a product that you use/eat/drink anyway and has a long shelf life, why not?
A while back Tesco had an offer on the Typhoo teabags I use - I think they were �2,49 for 160 but then they did a buy one get one free, so I bought half a dozen each week for about 4 weeks. I still have about 17 packs of teabags so won't be buying that again for about a year. Similarly, they did an offer on Weetabix recently which my husband has every day. Instead of �1.78 for the 24 pack, it was two packs for �2. Again, i've really stocked up, they have a long shelf life and I won't be buying Weetabix until next year. We won't eat any more of them or drink any more tea just because I have a big supply at the moment so I certainly don't feel a mug,